Questions Asked on
June 27, 2010

chemisrty
put in decreasing freezing point 0.10m Na3PO4,0.35m NaCl,0.20 m MgCl2, 0.15 m C6H12O6,0.15 m CH3COOH
asked by Anonymous 
chm
If 0.0490g of AgIO3 DISOLVES per liter of solution, calculate the solubility product constant.
asked by ami 
chemistry
a sample containing 1.50 mol neon gas has a volume of 8.00L.what is the new volume of the gas in liters when the following changes occur in the quantity of the gas at constant pressure and temperature? a.a leak allows onhalf of the neon atoms to escape.
asked by Jetta 
Chemistry
Fe + 2HCl = FeCl2 + H2 A piece of metallic iron (10 moles) was dissolved in concentrated hydrochloric acid. The reaction formed hydrogen gas and iron chloride. How many grams of HCl were consumed? Don't forget the units.
asked by Liz 
chemistry
calculate the pressure,in atmospheres, of 2.00 mol helium gas in a 10.0L container at 27 celcius?
asked by Jetta 
chemistry
The Vapor pressures of pure propyl alcohol and isopropyl alcohol are 21.0 mmHg and 45.2 mmHg, respectively, at 25 (degrees)C. Calculate the partial pressure of isopropyl alcohol above a solution in which the mole fraction of propyl alchol is 0.250.
asked by jimbo 
chemistry
calculate the pressure,in atmospheres, of 2.00 mol helium gas in a 10.0L container at 27 celcius?
asked by Jetta 
chemistry
Soutions are made that contain 0.1 moles of each of the following compunds below in 100 of H2O. Choose the compounds whose solutions will have the lowest freezing point. A)MgCl2 B)MgSO4 C)KClO3 D)CO2 E)NaBr
asked by jimbo 
CHEM 152
Calculate the molar solubility of calcium carbonate in 0.10 M Ca(NO3)2. (Ksp= 2.8 x 108)
asked by Car 
chemistry
a sample of helium gas has a volume of 6.50L at a pressure of 845mm Hg and a temperature of 25 celcius.what is the pressure of the gas in atm when the volume and temperature of the gas sample are changed to the following: a. 1850 mL and 325K
asked by Jetta 
chm
The molar solubility of PbBr2 at 250C is 1.0x10^2. Calculate the Ksp.
asked by ami 
chemistry
Sodium flouride, NaF, is a basic salt. Write the chemical equation that describes how the salt breaks up into its ions. Write the chemical equation that describes how one of the ions behaves as a base in water to produce OH.
asked by John 
Chemistry
How much 0.150 M sodium hydroxide would be required to just neutralize 15 ml of 0.175 M hydrochloric acid?
asked by Lark 
algebra
Graph he inequality on a plane 4y  5x> 20 I am confused, can you please help?
asked by Darla 
English
1. Reviewing word choice is a good strategy for the Proofreading phase of the Writing Process. True or False? I think it is False as reviewing word choice should be in the revision phase, right? 2. It is easier to determine the form of one's writing if the
asked by Anna 
physics
a 20 g bullet strikes a 0.7 kg block attached to a fixed horizontal spring whose spring costant is 5600 N/m and sets it into vibration with an amplitude of 25 cm. What was the speed of the bullet before impact if the two objects move together after impact?
asked by josh 
CHEM 152
Will a precipitate be observed if 0.10 mol Ag+ and 0.001 mol SO42 are added to make 1.0 L of solution? (Ksp = 1.4 x 105)
asked by Car 
English
In London's story about Alaska, the squat moosehide sack could be seen as a symbol of: A the Klondike gold rush B the man's greed C London's love of gold I think A and B are right
asked by Anonymous 
CHEM 152
At 50oC, the solubility of silver chloride, AgCl, is 5.2 x 104 g/100 mL. Calculate the Ksp at this temperature.
asked by Car 
Listening
I need to find the answer to this riddle. I followed the directions but didn't come up with anything I see that makes sense. Can anyone help please? Thanks! What word is spelled after following these directions? 1. Write the words GEORGE WASHINGTON on your
asked by Britney 
English
In the poem Warren Pryor, what does the author pick this certain pattern or rhythm for the poem?
asked by lola 
chemistry
What is the mass/vol % ethanol in an ethanolwater solution with density of 0.875 g/ml and containing 65.0% ethanol by volume? The density of pure ethanol is 0.789 g/ml.
asked by jimbo 
chemistry
use the molar volume of a gas to solve the following at STP: a. the number of moles of O2 in 44.8 L O2 gas. b. the number of moles of CO2 in 4.00L CO2 gas. c. the volume(L) of 6.40g O2. d. the volume(mL) occupied by 50.0g neon.
asked by Jetta 
Physics
Vector A has a magnitude 12m and is angled at 60 degrees counterclockwise from the positive direction of the x axis of an xy coord. system. Also. Vector B = (12m)i + (8m)j on that same coord system. Rotate the system counterclockwise about the origin by 20
asked by Rick 
Physics
A bowling ball weighing 71.2 is attached to the ceiling by a 3.50 rope. The ball is pulled to one side and released; it then swings back and forth like a pendulum. As the rope swings through its lowest point, the speed of the bowling ball is measured at
asked by Madeline 
geometry
BC is an altitude with length of 30 of ƒ´ABD. AC has a length of 16 What is the length of CD? If necessary, round your answer to two decimal places.
asked by tasha 
probabilities
Freddy owns a taxicab company and is trying to find the most economical method of handling incoming calls. He currently has a couple of employees working the phones, but wonders if there is a better arrangement. His options for the call center are:
asked by felicia 
AED 204
Can anyone help me answer this question. I need it to be 200 to 300 words. Riley Behler, a thirdgrade teacher at the Martin Luther King Elementary School, has been asked to see the principal, Erin Wilkerson, after the students leave. Dr. Wilkerson
asked by Rayna 
Discriminant
Use the discriminant to determine how many realnumber solutions the equation has 1  7a2 = 7a  2 A) 2 B) 1 C) 0 Not sure how to work this problem
asked by Lisa D 
Communication and Gender Studies
Give an example of men in lecture mode and women being captive listeners. Secondly, provide an example of men and women using different listening signals.
asked by Shelly 
Finance
Burger Corp has $500,000 of assets and it uses only common equity capital (zero debt). Its sales for the last year were $600,000 and its net income after taxes was $25,000. Stockholders recently voted in a new management team that has promised to lower
asked by Jackie 
English
Which statement is most accurate about Freeman Miller's feeling about the subjects of his poems? A the reader is not sure his feelings B he had positive feelings about them C he had negative feelings about them
asked by Anonymous 
CHM
Calculate the solubility of Cu(oh)2 in grams per liters of solution if Ksp for Cu(OH)2 IS 4.8X 10^20
asked by ami 
Government Check
1.)The President's power to veto congressional legislation and the requirement that Congress confirm the President's nominees to the Supreme Court are both examples of what? a.)Checks and balances b.)Civil rights c.)=Limited government d.)Judicial review
asked by Ariel 
algebra
Soybean milk is 12% protein; cornmeal is 6% protein. How many pounds of each should be mixed together in order to get 240 pound mixture that is 8% protein?
asked by Brenda 
statistics
a random sample of 100 college students is taken from the student body of a large university. assume that a population mean of 20 hours and a population standard deviation of 15 hours describes the weekly study estimates for the entire student body. About
asked by jc 
Geology
Briefly describe the two types of body waves an earthquake creates, please?
asked by anonymous 
National Security policy
What role should American's ideals play in it's National security policy history,current, hypothetical cases
asked by Diana 
algebra2
y6=2 y+4 _= help 7
asked by donna 
Geometry
If BC = 2x + 1, CD = 3x  4 and BD = 22, find the value of x. b. Using the value of x, find BC and CD
asked by E 
chemistry
calculate the densities of each of the following gases in g/L at STP: a. F2 b. CH4 c. Ne d. SO2
asked by Jetta 
physics
What is a cross sectional area of a bridge and does it affect the length of a bridge?
asked by Rebecca 
AED 204
Can anyone help me answer this question. I need it to be 200 to 300 words. Riley Behler, a thirdgrade teacher at the Martin Luther King Elementary School, has been asked to see the principal, Erin Wilkerson, after the students leave. Dr. Wilkerson
asked by Rayna 
English
Which of these authors did not write mainly for enterainment? A Upton Sinclair B Stephen Crane C Charlotte Perkins Gilman
asked by Anonymous 
English
By 1919, people still were not able to watch movices in a group, only indivicually T/F
asked by Anonymous 
physics
a bob vibrates up and down on a vertical spring. if the period of the motion is two seconds, the frequency is: two seconds. i took f=1/period=1/2
asked by Rebecca 
AED/201 Classroom Management Interview
Hello Everyone, My name is Hannah, I am 23 years old and I am currently working towards an AA in Elementary Education. I am taking AED/201 and this week (due Sunday) I am to turn in a short interview that I had with someone in the teaching profession.
asked by Hannah 
chm
what is ph of a solution made by mixing 55ml of 0.12M in Formaic acid and 65ml of 0.12M of Sodium Foramte? For Ka of Formaic acid is 1.4x10^4
asked by ami 
MathPLEASE HELP ASAP
how do I find the two sets of points for the following algbrea equation? y=3x+2
asked by Michelle 
english 2
where can i find critiques for the poems "Sometimes Words are So Close" and "Ironing Their Clothes" by julia alvarez?
asked by megan 
MATH
Which function Is even? a. f(x) = √x  3 b.f(x) = 3√x c. f(x) = x + 4 I keep getting neither even or odd. HELP PLEASE...
asked by Taylor 
algebra
p (z < .15)
asked by felicia 
algebra2
f+5 divide 7f+35 ____ ______= f3 f5
asked by Tracy 
alg
what are the nonpermissible value for the rational expression x^2 + x  6 / x^2 + x 12? a) x = 3 and x = 4 b) x = 0 and x = 4 c) x = 0 and x = 2 d) x = 2 and x = 3
asked by sean 
health
please show examples og week nine final for human services admin.
asked by james 
algebra2
kathy bicyles 57 km/h faster than carlos. in the same time it takes carlos to bicyle 36 km. kathy can bicyle 57 km. how fast does each bicyclist travel? help please
asked by ann 
Finance
Nance’s Restaurant, a local independent restaurant, is evaluating new pointofsale (POS) systems and must determine if a new installation is feasible. A new POS installation would include both software and hardware, with a total cost of $20,000. Taking
asked by jessica 
chemistry
11.31) solve for the new pressure when each of the following temperature changes occurs, with n and V constant: a. a gas sample has a pressure of 1200 torr at 155 celcius. what is the final pressure of the gas after the temperature has droped to 0 celcius?
asked by Jetta 
chemistry
solve for the new pressure when each of the following temperature changes occurs, with n and V constant: b. an aerosol can has a pressure of 1.40 atm at 12 celcius.what is the final pressure in the aerosol can if it is used in a room where the temperature
asked by Jetta 
English
Between 18901919, women expended a great deal of effort to promote women's rights T/F
asked by Anonymous 
1st grade
consonants initial middle and final
asked by laurence 
U.S History II
I think I'm over thinking this... Could someone explain what this means: List three contemporaneous movements, trends or activities in literature, science, art or economics. It also says that: For purposes of this activity,define "contemporaneous" as any
asked by Amy~ 
AP Biology
Plants have three basic organs, roots stems and leaves. Describe in detail the types of cells and tissue involved with each organ and their function in transport mechanisms in plants.
asked by Kevin 
eng
can anyone check my grammar please? The main problems Arnold Schwarzenegger must focus on are the immigration issues, college tuition costs and high unemployment.
asked by sha 
chemistry
The pH of a 0.10 M salt solution is found to be 8.10. Determine the Kb and the degree of ionization of the basic ion.
asked by Alex 
sociology
I need a 200 page story describing how the yanomamo indians relate to a concept in the sociology book
asked by DONNA 
science
what is the difference between the First Law of Thermodynamics and the Second Law of Thermodynamics.
asked by teine 
math
p(z>2.3)
asked by felicia 
algebra2
find the LCM 21z power of 7 and 63z power of 4? im not sure what im doing? help please?
asked by ann 
algebra2
P (1.1
asked by felicia 
algebra2
the simlified product of this is? 10a power of 8.9r power of 4 _______ _____________ 3r power of 2 100a i dunno what to do?
asked by ann 
algebra2
P (Z ¡Ü .64)
asked by felicia 
English
Which of the following choices is a good strategy for reviewing a first draft? a.check it closely for spelling errors b.think about who will read it and why c.read it out loudly d.post it on the internet e.none of the above I know that a,b,and d are just
asked by Calvin 
business
a 10 to 15slide Microsoft® PowerPoint® presentation describing the evolution of business. • Include information about the following points: o Feudalism o Mercantilism o Capitalism o Commerce o Property rights o The Industrial Revolution
asked by secret 
English
If a writer states that teenagers should know the best way to write an essay in his or her introduction, he or she is: a. presenting a short anecdote b. using a lively description c. stating a strong opinion C,right? just checking... Thanks a lot : )
asked by Calvin 
personal finance
Sue and Tom Wright are assistant professors at the local university. They each take home about $42,000 per year after taxes. Sue is 37 years of age, and Tom is 35. Their two children, Mike and Karen, are 11 and 9. Were either one to die, they estimate that
asked by andy 
????
How and when did Roberto Alagna lose his sight?
asked by Ariel 
algebra2
simplfiy by removing factors of 1. z power of 2 8z+15 ____________________ z power of 2 2z15 help please
asked by Tracy 
chemistry
Pressure of pure A at 85 (degrees)C is 500 mmHg, what is the vapor pressure of pure B at this temperature? A)336 mmHg B)960 mmHg C)576 mmHg
asked by jimbo 
Psychology
What are the four key milestones in the development of cognitive psychology as a discipline?
asked by Teresa 
algebra2
2 + 7 ______ xs power of 2 and x powqer of 2s
asked by ann 
algebra2
i don't think there is a solution for this one. 3y=1 _____ 4y y4 help please
asked by donna 
algebra2
q+5 + q2 = 7/3 _____________ 3 2
asked by me 
personal finance
Sue and Tom Wright are assistant professors at the local university. They each take home about $42,000 per year after taxes. Sue is 37 years of age, and Tom is 35. Their two children, Mike and Karen, are 11 and 9. Were either one to die, they estimate that
asked by andy 
Equation
w2  2w + 2 = 0 Use the discriminant to determine how many realnumber solutions the equation has A.2 B.1 C.0
asked by Lisa D 
health care administrator
An emergency physician, who is a good clinician, also has an entrepreneurial spirit. Following the mantra of business to �find a legal need and fill it,� he decides to establish a professional group of emergency physicians. He initially enlists the
asked by Mary 
finance
Last year Chart Corp. had sales of $300,000, operating costs of $265,000, and yearend assets of $200,000. The debttototal assets ratio was 25%, the interest rate on the debt was 10%, and the firm's tax rate was 35%. The new CFO wants to see how the ROE
asked by Jackie 
HCA 210
what are two positive patient outcomes
asked by Mari 
math
how will you solve these equations using matrices x+y=1 and 3x2y=4/3
asked by sha 
human services admin
help with week nine final project
asked by james 
Physics
How do I find out how much heat it takes to raise the temperature of 100 grams of aluminum from 50 degrees celcius to 80 degrees celsius. The specific heat is 900j/kg First I did 100*30*900 and it equalled 2,700,000. that seems to high, is it? I then
asked by Carissa 
MAT 116 Appendix D Axia college material
How do I find the answers to the remaining question already posted for appendix D. I see them but I can not find the answers can anyone help it is due tommorow and I have no clue as to how to answer them.
asked by faith10 
Physics
Does a police cars frequency become higher moving toward a stationary observer or away from? I am confused as to how we hear the frequency anyways..
asked by Colton 
English
Which of these titles most accurately reflects the years from 18901919? A war,war,war B all of these choices are correct C Good Times, Bad Times D struggle without results E the wonder years
asked by Anonymous 
English
A despot would be enraptured at the thought of providing a pageant of the people's pleasure T/F
asked by Anonymous 
English
Every U.S. President was in favor of a woman's right to vote. T/F
asked by Anonymous 
Word Problem
A woman has $1.70 in dimes and nickels. She has 5 more dimes than nickels. How many nickels does she have? A.8 B. 3 C.13 D. 18
asked by Lisa D 
accounting
Your company’s sales are 50,000 units. The unit variable cost is $12. Your markup percent on sales is 40% and your fixed costs are $100,000. 1. What is your profit / loss? You are thinking of increasing your advertising by $200,000. Based on previous
asked by Godfrey 
10th grade
compare and contrast the two prevailing winds that blow over Afica in June and September?
asked by Ebrima 
modern literature
Who are three authors that you consider to be in the literary canon today and evaluate whether you think these authors should be included in the canon.
asked by pj 
occupational safty & health
which universities in india lecture occupational safty & health for MSc please indtroduce me . thanks
asked by fatemeh 
Physics
Where do I find the answer of: What affects the length of a bridge, ie. cross sectional area, construction material, change in temperature or the length of the bridge?
asked by Rebecca 
US History II
Would anyone know the major event for the turning point in 1945 in US History? I came up with: WWII ends, Atomic Age begins, creation of the United Nations, the Cold War, Significance: the beginning of the end for colonialism I don't know which is the
asked by Amy~ 
statistics
Water sample from 6 public swimming pools are combined for one test regarding bacteria level.Further testing is done if the combined test fails. Past results have shown that there is a 2% chance of unacceptably high bacteria level. Determine the
asked by alba 
Healthcare
List two pros and cons to the use of these roles in communication for each of the given patient and care giver roles. Mechanics/Machines, Parents/Children, Spiritualists and believers, Providers and consumers, Partners
asked by Jacqueline 
statistics
P (1.1 ¡Ü Z ¡Ü 0)
asked by felicia 
statistics
P(Z > 2.3)
asked by felicia 
statistics
Suppose that you are given a decision situation with three possible state of nature: s1, s2, and s3. The prior probabilities are P(s1) =.1, P(s2) = .6, and P(s3) = .3. With sample information I, P(Is1) =.15, P(Is2) = .2, and P(Is3) = .1. Compute
asked by felicia