Sunday
May 19, 2013

# Homework Help: College

College Statistics, Intro
A worker for the American Red Cross wants to predict the average number of blood donations of college students. He takes a random sample of 900 students. But then he is puzzled and asks you: " In my sample most of the students have zero donations and the percentages go ...
Tuesday, December 14, 2010 at 3:44am

english
where can i find some reason to support this opinion "high schools should not only prepare students for college, they also need to help them prepare future possibilities."
Monday, December 13, 2010 at 8:20pm

college
Monday, December 13, 2010 at 8:04pm

college maths
subtract. 10 3/5-2 10/11= 8 38/55 7 743/55 7 38/55 Is D correct??
Monday, December 13, 2010 at 7:23pm

college maths
Simplify 5+1/3 1/3 1/3 {1/9+1/9} 4 1787/2187 4 1792/2187 4 1784/2187 4 22/27 Is D the best choice not sre for this one
Monday, December 13, 2010 at 6:47pm

college maths
Translate and solve. A number n increased by 1/4 gives 1/9. Find n. (Points: 5) n=1/9 n= -5/36 n=1/36 n=1/18 is it B
Monday, December 13, 2010 at 6:29pm

college maths
Find the LCD and add the fractions. 1/125 + 4/50= 11/24 1/1250 1/35 551/6250 (Points: 5) im not getting the concept of this some help is really needed please
Monday, December 13, 2010 at 5:33pm

college maths
Ann and Grace mow the yard for \$38 each mowing. During one summer they mowed 2 times and spent a total of \$10 on gas. The girls split their earnings. How much did each girl receive? (Points: 5) \$33 \$38 \$66 \$76 this one is confusing its either C or D bt depends....Are they ...
Monday, December 13, 2010 at 2:16pm

college maths
Write as a product of factors; then find the product. (Points: 5) 0 90 675 150 I think the answer is C but im confuse any other opinions please?
Monday, December 13, 2010 at 1:27pm

college algebra II
using the quadratic equation solve: y^2+16+64=0
Monday, December 13, 2010 at 10:09am

college
The approximate vapor pressure of CS2 at 30 degrees Celsius?
Monday, December 13, 2010 at 9:53am

college math intermediate alg
4y to the 5th power 81q to the 7th power ________________ X ___________________ 9q to the 2nd power 16y .
Monday, December 13, 2010 at 9:10am

college
4y to the 5th power 81q to the 7th power ________________ X ___________________ 9q to the 2nd power 16y .
Monday, December 13, 2010 at 9:04am

college
Tace the impulse, listing the steps in as much detail as possible, from which your brain sends the message to the approprirate muscles to lift a glass of water to drink. As in the previous Application Assignment, detail the steps involved in the transmission of the neural ...
Monday, December 13, 2010 at 12:48am

college geometry
Given: right triangle ABC with right angle at C, AC=22 and BC=6.Draw altitude CD where D is o hypotenuse AB. What is the ratio of the area of triangle ADC to the area of triangle CDB?
Sunday, December 12, 2010 at 11:43pm

college geometry
The distance between Sue and a dude ranch was 30 miles straight accross a rattlesnake-infested canyon. Instead of crossing the canyon, she hiked due north for a long time and then hiked due east for a ahorter leg of the journey to the ranch. If she averaged 4 mph and it took ...
Sunday, December 12, 2010 at 11:36pm

college geometry
In a triangle the ratio of the base to its altitude is 2:3. If the area of the trianlge is 108 square units, what is the length of the base?
Sunday, December 12, 2010 at 11:33pm

probability
78% of college graduates say they spent two years or less at their first full-time job after graduating college. you randomly select 10 college graduates and ask each how long they stayed at their first full-time job after graduating college. find the probability that out of ...
Sunday, December 12, 2010 at 11:04am

probability
78% of college graduates say they spent two years or less at their first full-time job after graduating college. you randomly select 10 college graduates and ask each how long they stayed at their first full-time job after graduating college. find the probability that out of ...
Sunday, December 12, 2010 at 11:03am

College Math
For questions 1-2, apply the quadratic formula to find the roots of the given function, and then graph the function. 1. f(x) = x2 + 4 (6 points) g(x) = x2 - x – 12 For questions 3-4, factor the quadratic expression completely, and find the roots of the expression. 1. (3 ...
Sunday, December 12, 2010 at 12:46am

statistics
Computer Services wants to estimate the mean number of hours college students use on campus computers each day. They want to be within .1 hour of the true value with 99% confidence. From a previous study, the standard deviation is assumed to be .6 hour. What size sample is ...
Saturday, December 11, 2010 at 9:58pm

College Chemistry
48.70 mL of an HCl stock solution was transferred into a 500 mL volumetric flask and filled to the mark. 47.67 mL of the diluted solution was titrated with 0.179 M NaOH and found to have the concentration of 0.885 M. What is the concentration of the stock solution?
Saturday, December 11, 2010 at 5:28pm

College Physics
An object initially at rest experiences an acceleration of 1.4 m/s^2 for 5.0s and then travels at that constant velocity for another 7.0s. What is the object's average velocity over the 12s interval?
Saturday, December 11, 2010 at 3:38pm

College Algebra
Solve the system: x + y + z = -1 2x + 2y + 5z = 1 5x + 2y + 3z = 8 what is the value of x in the solution?
Saturday, December 11, 2010 at 2:28am

College Algebra - Chemistry
A goldsmith has two gold alloys. The first alloy is 25% gold and the second is 55% gold. How many grams of each should be mixed to produce 40 grams of an alloy that is 43%?
Saturday, December 11, 2010 at 2:26am

College Algebra
Solve the system: 4x-3y=-3 y=6x-13 What is the value of y in the function?
Saturday, December 11, 2010 at 2:25am

college math
Use the Reference Angle Theorem to find the exact value of sec(13 pi/6).
Saturday, December 11, 2010 at 2:24am

college math
Express (cos^2t/tan^2t) as an expression that involves only the sine function.
Saturday, December 11, 2010 at 2:23am

college
The angle of elevation from point A to the top of a vertical pole is 30.0 degrees. At point B, 6 meters closer to the base of the pole and on a line through the base of the pole and point A, the angle of elevation to the top of the pole is 37.0 degrees. Find the height ( to ...
Saturday, December 11, 2010 at 2:22am

Political science college
what is a source for statistics for muslim american businesses in the US Do you know of a source for statistics for muslim american businesses in the US economy
Friday, December 10, 2010 at 11:14pm

College Physics
Four masses are positioned at the corners of a rectangle, as indicated in the figure below (not to scale). x 1kg------2kg | | | |y 3kg------4kg (a)Find the MAGNITUDE and DIRECTION of the net force acting on the 2.0 kg mass if x = 0.20 m and y = 0.11 m. (b)How do your answers ...
Friday, December 10, 2010 at 8:27pm

College Physics
Finally, your friend's twin engine jet airplane lands. As it stands on the runway, you hear the sound of the engines getting louder and softer, rhythmically once every 2.3 s. The average frequency you hear is 3650 Hz. What are the differences between the average frequency ...
Friday, December 10, 2010 at 4:03pm

college
Solve 9 tan x +5 =0, where 0 <= x <= 360
Friday, December 10, 2010 at 2:31am

college math
apply the quadratic formula to find the roots of the given function, and then graph the function. f(x) = x2 - 4 g(x) = x2 - x - 12
Friday, December 10, 2010 at 1:24am

college math
apply the quadratic formula to find the roots of the given function, and then graph the function. f(x) = x2 - 4 g(x) = x2 - x - 12
Friday, December 10, 2010 at 1:19am

college buisness
What about today's society reinforces American civic values?
Friday, December 10, 2010 at 12:11am

college
What are the pros and cons of matching clients and clinicians in terms of gender, ethnicity, disability, sexual orientation, or language? Does matching people along those lines ensure common experience and easy bonding?
Thursday, December 9, 2010 at 10:58pm

college
Write as a single log : 3log2+2log8- 1/2 log4 ( simplify your answer) Ans
Thursday, December 9, 2010 at 10:54am

college math/chemistry
chemical reaction: E + S <=> E~S <=> E-S <=> indicates a bidirectional reaction with different forward and backward rate constants. we can call these k1, k2, k3 and k4 in the above equation. Here, the enzyme binds to the substrate; the initial complex E~S ...
Thursday, December 9, 2010 at 8:39am

Math Finite
College students were polled about favorite types of food. 50% liked pizza, 40% liked hamburgers, and 20% liked both. What percent liked pizza OR hamburgers?
Wednesday, December 8, 2010 at 10:36pm

college
use the five steps for problem solving. the average of two test scores is 79. if one test score is eleven less than the other, what are the two test scores?
Wednesday, December 8, 2010 at 9:41pm

College Algebra
Carbon-14 Dating. Only 10% of the carbon-14 in a samll wooden bowl remains. How old is the bowl? Half life of carbon is 5700 years.
Wednesday, December 8, 2010 at 9:17pm

college
Dale Emerson served as the chief financial officer for Reliant Electric Company, a distributor of electricity serving portions of Montana and North Dakota. Reliant was in the final stages of planning a takeover of Dakota Gasworks, Inc. a natural gas distributor that operated ...
Wednesday, December 8, 2010 at 7:48pm

college
Communication channels - physical presence, written-printed, electronic/computer what are the advantages and disadvantages of each?
Wednesday, December 8, 2010 at 6:32pm

college
A process for producing electronic circuits has achieved very high yield levels. An average of only 10 defective parts per million is currently produced. 1. What are the upper and lower control limits for a sample size of 100? 2. Recompute the upper and lower control limits ...
Wednesday, December 8, 2010 at 4:01pm

College Algebra
Solve for C 2a=(5b-c)/(3c+1)
Wednesday, December 8, 2010 at 2:59pm

College Physics II
What is the longest wavelength light capable of ionizing a hydrogen atom in the n = 4 state? i know that Solve h c/L = (Rydberg)/6^2 for L something along those lines... but what am i solving for and what is c and h?
Wednesday, December 8, 2010 at 2:58pm

College Algebra
Wednesday, December 8, 2010 at 1:49pm

algebra
College Algebra Directions: Solve graphically: x^(2/3)+x^(1/3)-2=0 I just dont know how to approach this?!
Wednesday, December 8, 2010 at 1:25pm

College Chemistry..Urgent!
THE EQUILIBRIUM CONSTANT FOR A REACTION IS 2.48 AT 25 DEGREES CELSIUS. WHAT IS THE VALUE OF ΔG°(KJ)AT THIS TEMPERATURE? (R=8.314 J/K mol)
Wednesday, December 8, 2010 at 10:59am

college chemistry
At a prominent state hospital, a 45-year-old woman is receiving a ‘combined modality' treatment for the initial stage of breast cancer. State the two aspects included in this treatment. State the methods by which a radiation oncologist can administer these therapies. ...
Wednesday, December 8, 2010 at 8:51am

college chemistry
Discuss in detail, one way in which atomic nuclear decay takes place. What is the significance of atomic nuclear decay? Analyze the societal implications of using this process.
Wednesday, December 8, 2010 at 8:48am

College Chemistry
A 50.0 mL sample of 6.0 M HCL is dulited to 200.0 mL. What is the new concentration of the acid?
Wednesday, December 8, 2010 at 12:05am

College Chemistry
Which solution would have the lowest freezing point, 0.500 M NaCl or 0.500 M CaCl2?
Wednesday, December 8, 2010 at 12:03am

College Physics
A vacuum cleaner has a measured sound level of 75.7 dB. What is the intensity of this sound? Answer in units of W/m^2
Tuesday, December 7, 2010 at 11:35pm

college
A computer manufacturer is about to unveil a new, faster personal computer. The new machine clearly is faster, but initial tests indicate there is more variation in the processing time. The processing time depends on the particular program being run, the amount of input data...
Tuesday, December 7, 2010 at 11:01pm

English
· Read two of the five paragraphs on the second page of this appendix. Write a brief paragraph of about 150 words in which you do the following: · o Identify which paragraph was more effective and analyze why this is so. o Include a discussion of sentence variety...
Tuesday, December 7, 2010 at 8:59pm

College Chemistry Really Need Help
THE EQUILIBRIUM CONSTANT FOR A REACTION IS 2.48 AT 25 DEGREES CELSIUS. WHAT IS THE VALUE OF ΔG°(KJ)AT THIS TEMPERATURE? (R=8.314 J/K mol)
Tuesday, December 7, 2010 at 8:48pm

COLLEGE CHEMISTRY
THE EQUILIBRIUM CONSTANT FOR A REACTION IS 2.48 AT 25 DEGREES CELSIUS. WHAT IS THE VALUE OF ΔG°(KJ)AT THIS TEMPERATURE? (R=8.314 J/K mol)
Tuesday, December 7, 2010 at 1:58pm

Statistics
A researcher wants to estimate the mean serum cholesterol level for college age women. In a past study the stndard devition for this measure was 42 units. If the researcher wants to be off in his estimate by no more than three units ( with 99% confidence), how large must his ...
Tuesday, December 7, 2010 at 10:01am

college Chemistry
what mass of H 2 O is needed to completely react with 5.10g SiCl4
Tuesday, December 7, 2010 at 1:13am

college
if the value of machine is 50,000,estimated useful life is eight years and scrap value is 4000 calculate straight line method for 2 years
Tuesday, December 7, 2010 at 12:56am

college
Support sentences for the sentence high rise apartments are efficient housing
Tuesday, December 7, 2010 at 12:22am

college Chemistry
A 21.18 mL of 0.250 M NaOH is titrated with a H2SO4 solution. The initial volume of H2SO4 was 13.28 and the final volume of H2SO4 was 28.29 mL when the solution turned very slightly pink. What is the concentration of NaOH?
Tuesday, December 7, 2010 at 12:19am

college calculus-initial value
dy/dx=cos(7x)+5/pi initial condition y(pi/4)=2
Monday, December 6, 2010 at 11:26pm

college calculus-initial value
dy/dx=cos(7x)+5/pi initial condition y(pi/4)=2
Monday, December 6, 2010 at 11:20pm

college physics
Rather than rotate completely horizontally, a carousel rotates at an angle of 10° from horizontal, with a constant angular velocity of 1.571 RAD/s. A box is placed 1.5 m from the axis of rotation. What’s the minimum coefficient of static friction so the box will not ...
Monday, December 6, 2010 at 9:55pm

college chemistry
what is the highest freezing point of H2O, NaCl, and HF
Monday, December 6, 2010 at 9:47pm

college
A tank of water 3 meters deep sits on a table 1 meter tall. A hole is located 2 meters from the bottom of the tank. Water flows out of the hole and strikes the ground. Where does it strike the ground? Assume incompressible, non viscous flow.
Monday, December 6, 2010 at 9:46pm

College algebra
A person is driving a car on a straight road. The graph shows the distance in y miles that the individual is from home after x hours. the graph has the following points (1, 40) and (3, 90) Find the slope intercept of the line y = ____x + ______ How fast is the car traveling? ...
Monday, December 6, 2010 at 9:29pm

college Chemistry
What is the mole of oxalic acid? Equation:H2C2O4 + 2NaOH---> Na2C2O4 + 2H2O *Moles of oxalic acid dihydrate is 0.032 mole. * Molarity of oxalic acid solution is 0.128 M oxalic acid solution. * Initial volume of Oxalic acid is 19.8 ml and Final volume is 23.0 ml
Monday, December 6, 2010 at 9:27pm

writing paper for political science
Confused on what do to do for this paper I have to write for a class here in a community college. I am to choose a country in asia, africa or Latin America like say South Korea. I am to research recent history and contemporary situation. Identify and explain using factual ...
Monday, December 6, 2010 at 8:58pm

College algebra
a company finds it can produce 15 heaters for \$4300, while producing 20 heaters costs \$5500. Express y, as a linear function of the number of heaters, y. Determine the cost to produce 30 heaters. y = _________ Cost to produce 30 heaters \$_________ Help I'm not sure how to ...
Monday, December 6, 2010 at 7:17pm

college physics
A Loop wire has a diameter of 1.00 cm. It carries a current which generates a magnetic field of 3.00 MT at the center of the loop. What is the current in the loop?
Monday, December 6, 2010 at 6:58pm

college Chemistry
As one descends group 6A of the periodic table, the number of valence electrons found in each element? A. Increases B. Decreases C. Remains the same
Monday, December 6, 2010 at 5:25pm

college Chemistry
Which is not a ground state electron configuration? A. 1s2 B. 1s2 2p1 C. 1s2 2s2 D. 1s2 2s2 2p1
Monday, December 6, 2010 at 5:25pm

statistics
The final rankings of the top 20 NCAA college basketball teams are an example of which level of measurement?
Monday, December 6, 2010 at 5:02pm

college
A train is heading due west from St. Louis. At noon, a plane flying horizontally due north at a fixed altitude of 4 miles passes directly over the train. When the train has traveled another mile, it is going 80 mph, and the plane has traveled another 5 miles and is going 500 ...
Monday, December 6, 2010 at 4:08pm

college Chemistry
A 21.18 mL of 0.250 M NaOH is titrated with a H2SO4 solution. The initial volume of H2SO4 was 13.28 and the final volume of H2SO4 was 28.29 mL when the solution turned very slightly pink. What is the concentration of NaOH?
Monday, December 6, 2010 at 4:04pm

college
What are the methods of judicial selection for federal judges?
Monday, December 6, 2010 at 2:45pm

College Chemistry
Given 400.0 g of hot tea at 80.0C, what mass of ice at 0C must bea added to obtain iced tea at 10.0C? The specific heat of water is 4.18 J/(g*C), The specific heat of water is 4.184 kJ/mol.
Monday, December 6, 2010 at 2:43pm

college
If two indistinguishable dice are rolled, what is the probability of the event {(2, 2), (3, 2), (1, 2)}?
Monday, December 6, 2010 at 1:58pm

college physics
One cm of a 10-cm-long rod is made of metal, and the rest is wood. The metal has a density of 5000kg/m^3 and the wood has a density of 500kg/m^3. When the rod is set into pure water, the metal part points downward. How much of the rod is underwater?
Monday, December 6, 2010 at 1:48pm

college physics
One cm of a 10-cm-long rod is made of metal, and the rest is wood. The metal has a density of 5000kg/m^3 and the wood has a density of 500kg/m^3. When the rod is set into pure water, the metal part points downward. How much of the rod is underwater?
Monday, December 6, 2010 at 1:48pm

college chemistry
How many grams of Mg(OH)2 can be prepared from the reaction of 20.0g of Mg3N2 with 10.0g of H2O?
Monday, December 6, 2010 at 12:36pm

college chemistry
a 20.3 sample of an organic compound was ground with 442 mg of camphor to form an intimate mixture melting at 170.3 degree C. What is the apparent formula weight of the organic compound ? (Kf of camphor=37.7 degree C/m M.P. of camphor= 178.4 degree C)
Monday, December 6, 2010 at 12:34pm

college chemistry
what is the volume (in mL) when 280 mL of an ideal gas at 87 degree C and 650 torr preasure is cooled at 27 degree C at 760 torr?
Monday, December 6, 2010 at 12:32pm

College Chemistry
A 1.00-L solution saturated at 25°C with calcium oxalate (CaC2O4) contains 0.0061 g of CaC2O4. The solubility constant (Ksp) for this salt is [CaC2O4=128.09 g/mol]
Monday, December 6, 2010 at 12:23pm

College Chemistry
Calculate the molar solubility of Mn(OH)2 in grams per liter when buffered at pH 8.5 Mn(OH)2=88.953g/mol; Ksp=1.9 x 10^-13
Monday, December 6, 2010 at 12:21pm

College Chemistry
The value of ΔG°f at 25°C for gaseous mercury is 31.85 KJ/mol. What is the vapor pressure of mercury at 25°C? [Hint: calculate the Kp for the reaction Hg(l)=Hg(g)]
Monday, December 6, 2010 at 12:19pm

college chemistry
the normal freezing point of the element mercury, Hg(l), is a -38.9°C and its molar enthalpy of fusion, ΔHfusion=2.29 KJ/mol. What is the entropy change (J/K) of the system when 50 g of Hg(l) freezes at the normal freezing point. Hg= 200.59 g/mol
Monday, December 6, 2010 at 12:13pm

College Chemistry
The eqm. Constant for a reaction is 2.48 at 25°C. what is the value of ΔG° (kJ) at this temperature? (R=8.314 J/k mol)
Monday, December 6, 2010 at 12:08pm

College Chemistry
A 20.0 Ml sample of sulfuric acid is titrated with 25.0 ML of 1.0 M NaOH solution. What is the molarity of the sulfuric acid? H2SO4+ 2NaOH yields Na2SO4 + H2O
Monday, December 6, 2010 at 11:55am

College Chemistry
The eqm. Constant for a reaction is 2.48 at 25°C. what is the value of ΔG° (kJ) at this temperature? (R=8.314 J/k mol)
Monday, December 6, 2010 at 11:48am

college
Figure 11-50 shows two examples of SHM, labeled A and B. (The vertical axis is marked in increments of 0.5 m and the horizontal axis is marked in increments of 1 s.)
Monday, December 6, 2010 at 10:36am

College Chemistry
The eqm. Constant for a reaction is 2.48 at 25°C. what is the value of ΔG° (kJ) at this temperature? (R=8.314 J/k mol)
Monday, December 6, 2010 at 10:10am

college
suppose that you have 800ft of fencing. you are to construct a rectangular corral which is divided into two pieces. what are the dimensions that give the largest possible areas?
Monday, December 6, 2010 at 1:39am

college Chemistry
Decide if the molecule has a dipole moment, (if the molecule is polar) as follows: a) dipole (polar molecule) b) no dipole (non-polar molecule) c) ionic (not a molecule) d) super covalent e) none of the above 11.) CsF 12.) nitrogen 13.) Methane 14.) ammonia 15.) CH3F
Monday, December 6, 2010 at 1:13am

college Chemistry
(Questions 6 and 7) For the following elements list the electron configuration. Assume it is neutral and in its ground state. 6. Fluorine (a) 1s22s22p1 (b) 1s22s22p63s1 (c) 1s22s22p5 (d) 1s22s22p63s23p64s1 (e) 1s22s1 7. Gallium a)1s22s22p63s23p64s23d104p65s24d105p66s2​...
Monday, December 6, 2010 at 1:11am

College math
Analyze x²-6x-5y=1. Determine the vertex, focus, directrix, intercepts, axis of symmetry, and at least 2 other points on the graph.
Monday, December 6, 2010 at 1:04am

college
1. How did U.S. manufacturers become vulnerable to offshore outsourcing? Give examples to support your answers.
Sunday, December 5, 2010 at 11:07pm

English
Can you tell me if all my verbs are correct? Not one of the ushers knows where the lounge is. Mumps is a common childhood disease that causes swelling in glands in the neck. Politics is always a popular subject both to debate and to study at college. The team is on a winning ...
Sunday, December 5, 2010 at 8:03pm

college
can someone please give me an example of a situation in which personal or religious beliefs might conflict with something that may be asked of you professionally? What should you do in this situation?
Sunday, December 5, 2010 at 1:01pm

College Chemistry
How do you calculate the value for Delta U for a system that loses 50 J of heat and has 150 J of work performed on it by the surrondings? I need to know the formula to use and how to use it. Thank you!
Sunday, December 5, 2010 at 11:05am

college Chemistry
Why was there condensation of the beaker of cold water when a blue flame was passes underneath? This experiment is from the Gas Burner experiment. A) the product of carbon dioxide from combustion (B) the product of hydrogen dioxide from combustion (C) left over unburned oxygen...
Sunday, December 5, 2010 at 1:50am

college
An essay on- To what extent was president andrew jackson one of the nation'smost effective president?
Saturday, December 4, 2010 at 11:43pm

college
To what extent was president andrew jackson one of the nation'smost effective president?
Saturday, December 4, 2010 at 11:38pm

statistics - math
Sixty percent of the students at a particular community college are female. If 13 students at that community college are selected at random, find the probability that 5 or 6 students will be female. Use Appendix Table or Excel function for Binomial distribution. [Remember from...
Saturday, December 4, 2010 at 11:17pm

College physics-oscillations
A ball is attached by two spring as shown [vvvOvvv]. If the mass is displaced a distance â–³x BELOW the equilibrium position h (see figure A). Determine whether vertical SHM is possible for the system shown.If so, find the natural frequency. [Assume that the ...
Saturday, December 4, 2010 at 10:48pm

college Chemistry
After subtracting the weight of the container, the Vanadium metal inside is found to weigh 8.34 grams. After reacting with Oxygen the newly formed compound weighs 21.43 grams. What is the empirical formula?
Saturday, December 4, 2010 at 10:12pm

College physics-oscillations
A ball is attached by two spring as shown [vvvOvvv]. If the mass is displaced a distance â–³x BELOW the equilibrium position h (see figure A). Determine whether vertical SHM is possible for the system shown.If so, find the natural frequency. [Assume that the ...
Saturday, December 4, 2010 at 9:08pm

college Chemistry
1. If 25 grams of Iron (III) hydroxide is dissolved in a 500mL volumetric flask, what is the Molarity of the solution? 2. An unknown metal has a volume of 5.25 mL and a density 2.71 g/mL. What is the weight of the metal in grams? 3. An unknown metal, heated to an unknown ...
Saturday, December 4, 2010 at 5:46pm

english
Hi I really would appreciate your help.I am freshman in college and I want to be "Women's health nurse pracitioner". However, English is not my native language and even though this is exactly what I am interested in I am doubting my performance in labs. I am not ...
Saturday, December 4, 2010 at 4:48pm

com155
Write five sentences about the role of education in successful financial planning, in which you correctly use a different verb tense in each sentence. Mark each verb used in bold and, in parentheses, identify the specific tense used The role of education plays a big part in ...
Saturday, December 4, 2010 at 4:40pm

com155
Write five sentences about the role of education in successful financial planning, in which you correctly use a different verb tense in each sentence. Mark each verb used in bold and, in parentheses, identify the specific tense used. THIS IS WHAT I WROTE: The role of education...
Saturday, December 4, 2010 at 3:35pm

*Only need input not doing it for me. PLEASE QUESTION: Some hydrocarbon fuels have sulfur present and contribute to air pollution. When this solid sulfur is burned in the presence of oxygen, the noxious, toxic gas sulfur dioxide results. If there is .50 grams of sulfur and 1....
Saturday, December 4, 2010 at 10:30am

college
President Bush has stated that if any non-democratic country's people seek freedom, America will stand with them. Freedom and democracy, however, takes several forms. What kind of democracy and freedom should a country that has never enjoyed these experiences have? Explain...
Friday, December 3, 2010 at 11:16pm

college
I need help with writing a thesis statement for a paper on discrimination in a diverse culture
Friday, December 3, 2010 at 4:34pm

college
The first class in a relative frequency table is 50–59 and the corresponding relative frequency is 0.2. What does the 0.2 value indicate?
Friday, December 3, 2010 at 3:01pm

college
You buy an eight year bond that has a 6% current yield and a 6% coupon (paid annually). In one year, promised yields to maturity have risen to 7%. What is your holding period return?
Friday, December 3, 2010 at 2:50pm

com/156
can you help on how to write an outline for credit card companies should not be on campus marketing to college students
Friday, December 3, 2010 at 1:51pm

college chemistry..
a sample of lead glass is prepared by melting together 20.0 g og silica (SiO2), and 80.0 g of lead oxide (PbO). what is the mole fraction of SiO2 and PbO in the glass?
Friday, December 3, 2010 at 8:40am

college
I need three characteristics of orientalism
Thursday, December 2, 2010 at 11:44pm

college chemistry
The voltaic cell described by the balanced chemical reaction has a standard emf of 4.05 V. Calculate the equilibrium constant (Kc) for the reaction at 25 oC. Round your answer to 3 significant figures. F2(g) + Mn(s) → 2F-(aq) + Mn2+(aq) Mn2+/Mn -1.18 F2/F- +2.87 0 °C...
Thursday, December 2, 2010 at 10:40pm

Chemistry College
One reaction of iron with hydrochloric acid is represented by the following thermochemical equation. Fe(s) + 2HCl(aq) → FeCl2(aq) + H2(g); ΔH°= –87.9 kJ How much heat is liberated at constant pressure if 0.416 g of iron reacts with 42.0 mL of 0.457 M HCl? A...
Thursday, December 2, 2010 at 5:48pm

college chemistry
Consider the following metals. Metal Specific Heat copper 0.385 J/(g · °C) magnesium 1.02 J/(g · °C) mercury 0.138 J/(g · °C) silver 0.237 J/(g · °C) lead 0.129 J/(g · °C) If the same amount of heat is added to 25.0 g of ...
Thursday, December 2, 2010 at 4:39pm

College math
On a flight with 138 passengers, each passenger had the choice of peanuts or pretzels for a snack and the coice of chicken or beef for dinner. The beverage service offered 12 beverages. A flight attendant later remarked that no 2 passengers had the same request. Is this ...
Thursday, December 2, 2010 at 2:09pm

College Chemistry
a 1.00-L solution saturated at 25°C with calcium oxalate (CaC2O4) contains 0.0061 g of CaC2O4. The solubility constant (Ksp) for this salt is [CaC2o4= 128.09 g/mol] a) 6x10^ -3 b) 4.6x10^ -8 c) 2.3x10^ -9 d) 1.5x10^-4 if you could please work it out for me, thank you
Thursday, December 2, 2010 at 12:25pm

english
i need to know if i corrected these two paragraphs properly. i need to know if the sentences flow properly and if there's any errors thank you. 1. A lot of people don’t have wills. Everyone needs a will, but not all people have one. Wills are important because they ...
Thursday, December 2, 2010 at 11:30am

college
a certain radioactive isotope has a half life or 850 years.how many years would it take for a given amount of this isotope to decay to 70% of that amount?
Thursday, December 2, 2010 at 9:53am

English(how is it?)
Should there be abolishment of the 12th grade? To some this may sound like a good idea in theory. But there could be too many complications that come along as well. Some feel as if the 12th grade should be abolished in favor of job training. As well as trying to encouraging ...
Wednesday, December 1, 2010 at 11:17pm

college
determine the size of the sample to be taken from a population with S.D. 10 if the probability of the sample mean differing from the population mean by more than 2, is less than 0.2
Wednesday, December 1, 2010 at 9:45pm

College Physics
An ambulance is approaching at 80 mph (35.8 m/s). If the siren produces a continuous 400 Hz tone, what frequency do you hear? Assume the speed of sound to be 340 m/s.
Wednesday, December 1, 2010 at 5:46pm

college
explain how the organism in a diagram has evolved physiologically to become suited to its environeme
Wednesday, December 1, 2010 at 3:29pm

Math126
A Community College has 3,000 student and 90 instructors.The college plans that enrollment will be 3,500 next year.How many new instructors should be hired if the college wants to keep the same students to instructor ratio?
Wednesday, December 1, 2010 at 3:11pm

college
You transfer a sample of gas at 17 degrees celsius for a volume of 5.86 L and 1.10 atm to a container at 37 degrees celsius that has a pressure of 1.10 atm. what is the new volume of gas?
Wednesday, December 1, 2010 at 3:10pm

college
At the center of a 50 m diameter circular ice rink, a 75 kg skater traveling north at 2.5 m/s collides with and holds onto a 60 kg skater who had been heading west at 3.5 m/s. How long will it take them to get to the edge of the rink. Where will the reach it. Give your answer ...
Wednesday, December 1, 2010 at 2:58pm

College Physics
Rather than rotate completely horizontally, a carousel rotates at an angle of 10° from horizontal, with a constant angular velocity of 1.571 RAD/s. A box is placed 1.5 m from the axis of rotation. What’s the minimum coefficient of static friction so the box will not ...
Wednesday, December 1, 2010 at 10:16am

VB programming
This problem is creating code for a line chart. - Write a program to create the line chart. Use Table in 9.6: Table 9.6] Two -year college enrollments (in thousands). 1960 1970 1980 1990 2000 ---------------------------------- Male 283 1375 2047 2233 2398 Female 170 945 2479 ...
Wednesday, December 1, 2010 at 6:19am

college
Maximize P = x + 16y - z subject to 2x + y + z 14 4x + 2y + 3z 28 2x + 5y + 5z 30 x 0, y 0, z 0
Wednesday, December 1, 2010 at 1:47am

Calculus
Redo problem 8 in section 6.3 of your textbook (page 288) assuming that the parents need \$105000 in 9 years for college expenses, and that the bank account earns 9.25% compounded continuously. Round your answers to the nearest cent. (You may need to compute your answers to 4 ...
Wednesday, December 1, 2010 at 1:42am

College Algebra
Only 27% of the carbon-14 in a wooden bowl remains. How old is the bowl? (Carbon-14 has a half-life of 5,700 years.)
Wednesday, December 1, 2010 at 1:07am

college
Use the Microsoft Web site microsoft. com/ windows/ compatibility to research whether a home or lab PC that does not have Windows Vista installed qualifies for Vista. Fill in the following table and print the Web pages showing whether each hardware device and appli-cation ...
Wednesday, December 1, 2010 at 12:45am

college
A ladder 10 feet long rests against a vertical wall. If the bottom of the ladder slides away from the wall at a speed of 2 ft/s, how fast is the angle between the top of the ladder and the wall changing when the angle is /4 radians?
Tuesday, November 30, 2010 at 11:48pm

writing process
Choose one of the following topics. Write an 8-paragraph sentence paragraph that fully develops the topic. a. following instructions is very important. b. Advances in technology are making people less social. c. A high school diploma is important to my future. d. College is ...
Tuesday, November 30, 2010 at 9:29pm

College Algebra
ln 2+6 ln x+4 ln (x^2=8) How would I rewrite the expression? I'm struggling in Math.
Tuesday, November 30, 2010 at 3:27pm

college
I have a project english composition 205, about the tom wait's musician
Tuesday, November 30, 2010 at 3:01pm

college
Positive charge is distributed throughout a long non-conducting cylindrical shell of inner radius R and outer radius 2R. At what radial depth beneath the outer surface of the charge distribution is the electric field strength equal to one-half the surface value?
Tuesday, November 30, 2010 at 2:47pm

college
A supplier provides parts to a manufacturing company that demands JIT deliveries. At the present time it takes 6 hours to make a round-trip between the supplier's warehouse and the customer, including loading, travel and unloading time. The lot size is 12 pallet loads on a...
Tuesday, November 30, 2010 at 11:39am

college
If 0.0900 g of a metal, M, reacts with excess hydrochloric acid to form 5.00*10(exp.)-3 moles of hydrogen gas and a solution of MCl(subscript)3. Calculate the molar mass of metal, M and identify it. The unbalanced equation is: M(s)+ HCl(aq) =>MCl(sub.)3 + H(sub)2.
Tuesday, November 30, 2010 at 12:56am

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