Wednesday
April 23, 2014

Posts by Cathy


Total # Posts: 331

chemistry
Can you help me with the following: Calculate hte pH that results when 25 mL of .1M HCL is titrated with .1M NaOH solution run in from a buret at each of the stages of volume of .1 M NaOH add in 5.0 mL incrememnts beginning with 0 mL of NaOH

geometry
what is the name of a figure that is 36 inches around and that has equal sides, each 6 inches long ?

maths
how many is 1kg= how many gram

anatomy and psysiology
what area of the spinal cord is destroyed when a person gets polio?

Chemistry
0.05 mole of HCL is added to a liter of buffer containing 0.04 mole of NH3 and 0.03 mole of NH4CL. What is the ph? Kb= 1.8X10^-5

CHEMISTRY
Methanol(CH4O),used in racing cars,burns O2 to form CO2and H2O. 2CH4O(l) + 3O2(g)-->2Co2(g) +4H2O(g) 32.0g/mol 32.g/mol 44.g/mol 18.g/mol What is the theoretical yield of CO2 from 48 g of methanol? What is the percent yield of CO2 if 48.0g og CO2 are formed?

CHEMISTRY
Methanol (CH4O0, which is used as a fuel in high performance racing cars, burns in the presence of )2 to form CO2 and H2O. The molar masses for all substances are given under the balanced equation. 2 Ch4O9l) + 3 O2(g)-->2 CO2(g)+ 4H2O9g) 32.0g/mol 32.g/mol 44.0g/mol 18.g/mol

CHEMISTRY
how many grams are contained in 0.50 mol of each compound? HCl Na2SO4 C2H2 and Al(OH)3?

chemistry
Explaain the effect of a decrease in pressure on the solubility of each type of solute in a liquid solvent: gas and solid?

chemistry
how many moles of solute are contained in each solution? 250 mL of a 0.55 M NaNO3 solution? 145 mL of a 4.0 M HNO3 solution? 6.5 L of a 2.5 M HCl solution?

chemistry
Explain the effect of a decrease in pressure on the solubility of solute in a liquid solvent, gas and solid?

chemistry
the reaction of aluminum metal (Al) with oxygen (O2) forms Al2O3. What is a balanced equation for this redox reaction. What are two half reactions to show how many electrons are gained or lost by each species?

Communications
Revised essay In this essay we will compare and contrast the perceptions of South African parents and non-parents on what makes a perfect parent. We will do this by using the 16 factors of Levitt and Dubner (2009) in an interview schedule and interview a chosen sample that con...

Communications
This was my instructions Write an essay in which you compare and contrast the perceptions of South African parents and non-parents in the question of what makes a perfect parent. Use the 16 factors set out by Levitt and Dubner (2009). You need to interview 5 people who are par...

Communications
This is my essay. Thanks for your help!! In this essay we will compare and contrast the perceptions of South African parents and non-parents on what makes a perfect parent. We will do this by using the 16 factors of Levitt and Dubner (2009) in an interview schedule and intervi...

Communications
Please HELP this is my first comparative essay and I need someone to review it and tell me if I am on the righttrack or if I am loosing the plot. PLEEEEEEEEEEEEEESE

Geography
y9124, do you go to keystone? If you do can u pls tell me what pages from the text book you found that? thanks :)

Health ????
This is going to be a odd question. My dad wears contacts most of the time. When he is not he will wear his glasses. He is nearsighted. What he wants to know is can he use the same prescrition for his contacts on his glasses. He does does not want to go to the eye doctor. He t...

healthcare
What are some of the challenges to using a managed care approach in mental health care? How does a managed care model of mental health care reduce health care spending?

Math
Sue, got a raise at work her current wage was $32.500 a year her new wage is 35.500 a differents of $3.000 per year how do I come up with her hourly wage she is paid is every 26 weeks?

math
jessica had 24 customers open an account during the month, which is 60% of her monthly goal. What is her monthly goal. I came up with 40. am I right?? If not how do I figure this out. The other choices are 36 40 54 60 Thanks to all for your help.

math
the price for a stock has decreased from $24.50 per share to $18.60 per share. What percentage is the decrease? I am not sure how to figure this. I came up with 24.08% ???

algebra
mat 116 week2 quiz

Philosophy
Is this argument valid or invalid? If invalid, describe a possible situation where all of its premises are true and its conclusion is false. Lori is unhappy with some people who did not write thank you notes. Lori will send presents next year to everyone with whom she is happy...

business english
I am extremely excited about beginning my medical transcription career with you at Mayo Health Systems and look forward to making a positive impact in the lives of your patients. While your doctor is looking at your chart in the hospital, it isn’t often that a patient thi...

business english
Background You’ve applied for a specific job in your field of study. The Human Resources Department arranges an interview and tells you to bring with you a polished piece of writing for them to evaluate your writing skills. The paragraph must describe one particular exper...

computers
Derive what you believe is the underlying structure of either iTunes or the Walden University Library database. Sketch the result as an ER diagram. Alternate: Identify at least three difficulties that a DBMS overcomes for the business enterprise. Name two additional problems t...

Critical Thinking
How can the concept of a national identity both unit and divide people?

Chemistry
A buffer is prepared by mixng 150.0 mL of 0.500 M ammonia, 250.0 mL of 0.200 M ammonium chloride and 600.0 mL of water. To this solution is added 50.0 mL of 0400 M hydrochloric acid. What is the final pH?

physics
a stone of mass o.5 kg is dropped from a height of 5om.what is the kinetic energy of the stone just before it strikes the ground?

physics
a stone of mass o.5 kg is dropped from a height of 5om.what is the kinetic energy of the stone just before it strikes the ground

Math
Can someone please help me out with these? What is the rate of inflation of an item with a Consumer Price Index of 246.8 in 1991 and 362.4 in 1992? Round your answer to the nearest tenth. 0.681 0.319 0.468 0.536 Determine the future value of an annuity due into which quarterly...

Math
Thanks guys

Math
Can someone please check to see if I got these right. A store receives $400 cash after offering a chain discount of 10/10/5 on a good. What was the list price? $492.20 $519.82 $533.33 $612.00 Answer: $533.33 A merchant buys a good for $275. Their store's operating expenses...

Marketing
What is the decision facing American Express and what are the alternatives? (promotional strategy and integrated communication)

organic chemistry
on a newman projection, what does it mean when there is a blank where a substituent should be? does that mean H or CH3?

humanities
what is human experience

Math
What value would I receive at the end of 6 months?

Math
What would I receive at the end of 6 months?

Math
Thanks so much Jim.

Math
Wait, is there a way to do this on a calculator? Like 1.03*365

Math
Thanks again, really appreciate it.

Math
Jim, quick question. What it I wanted to to invest the $4,000 in the high-interest savings account. Which is the savings account that pays 3% compounded daily. How do you multiply the daily number? multiply the 4,000*3%*365

Math
I'll give it a shot. Thanks so much for your help, I really appreciate it.

Math
Alright, I no I'm a little slow with this, but can you explain the numbers 1.06^12 - 1)*100. 1.06 is the 6% right? what is the ^12-1 and 100. Sorry to be a pain, this is the first time I'm doing this type of thing.

Math
Ok thank you. How did you get the 101.2% for c.

Math
Thanks. And for b. I subtract 4000 from 5754.08 to get the interest?

Math
Thanks for answering jim. So, for a. that would be $4000 + 6%. or is it 3%? diveded by 6 months? I'm really confused by this one.

Math
Can someone steer me in the right direction? Here's the question. Envision that you have served as business manager of Media World for over 2 years. You have noticed that for the last 12 months the business has regularly had cash assets of $20,000 or more at the end of eac...

scientist
how do scientists keep ice fossils frozen?

Math
Envision that you have served as business manager of Media World for over 2 years. You have noticed that for the last 12 months the business has regularly had cash assets of $20,000 or more at the end of each month. You have found a 6-month certificate of deposit that pays 6% ...

Grammer
Ok the first quote would be better what you have change. Thanks for your help.

Grammer
Yes or a soccer ball always has been in his feet since the age of 4.

Grammer
I am trying to post a quote for his Senior Night Soccer Board about Matt. It has a MATT on the Board.

Grammer
I need a help to correct this sentence if it is right or not. Must live with a soccer ball since the age of 4?

math
Ok I got it. Its process of elimination. So it would be B-7.

math
Sorry forgot to post the answers, which one would it be?? And can you show how you solved it?? A-3 B-7 C-17 D-35 Thanks

math
How would you solve this problem?? A piggy bank contains only nickels and dimes. In all there are 42 coins with a total value of $3.85. How many nickels are in the piggy bank??

math
describe the situation from the veiwpoint of each person. during a year a person saves 12oo dollars and another person spends 500 dollar. which real number corresponds to saves 1200 dollars. type a negative number with a negative sign, or type a positive number with no sign. w...

Math Help
5simplify your answer. type an improper fraction.s+st3s/19

Math
collect 5s+s+3s/19 simplify your answer. type an improper fraction

Math
solve 3(2x-2)=18 select the correct choice below& if necessary fill in the answer box to complete your choice. a. the solution is x= simplify answer. b. the solution is all real numbers. c. there is no solution.

Chemistry
Draw the best Lewis structure for NCCH2C(O)CH2CHO, a neutral molecule. Show all atoms, bonds, lone pairs, and formal charges.

marketing
Explain the relationship between the 3 elements that constitute the marketing concept.

ChECK Homework English
Homework I Pg.108 (Ex.1)Choose the verb that agrees with its subject according to the conventations for academic and professional writing. 1. There are at least two good reasons for changing motor oil: risk of contamination and danger of addictive depletion. 2. Reasons for not...

history
what draw backs did the first new deal face.

healthcare
Use five medical words discussed in this week’s reading to create a SOAP note.

healthcare
can you give me a Physiology powerpoint Presentation that summarizes the processes of the digestion,respiration,and circulation.

cultural diversity
Use Ch. 7 of the text and Appendix C to identify events and leaders of the Civil Rights and Black Power movements and their contributions to their respective causes. Complete both Parts I and II of Appendix C.

Economics
Could you please check these thanks. Directions: Supply can decrease and increase depending upon several factors. Also you must put if that factor increase/decreases amount of supply, if the supply curves to the left/right, and if the cost to produce is increasing/decreasing F...

Com 150
I am having problems with week 5 assignment, Documenting Sources. Do I use my final project topic or do I choose another one?

Science
What does temperature have to do with thickness?

Science
The warmest temperature occurs at _______ and why does the warmest daily temperature occur in mid-to-late afternoon rather than at the time if the highest sun angle? The coolest temperature of the day occurs at sunrise. Why?

Science
I am working with a graph and if at every 5.6 km you cut in half the atmospheric mass. So at 16.8 km wouldn't you have 12.5% of the atmosphere above and 87.5% would be below?

Science
When measuring the % of above the height. What fraction is above 6.19km? ________% and pressure is _______ mb

Science
I am working with a graph and if at every 5.6 km you cut in half the atmospheric mass. So at 16.8 km wouldn't you have 12.5% of the atmosphere above and 87.5% would be below?

Science
The percent of atmosphere above and below 16.8 km is?

Physics
Problem: A hunter shoots an arrow at a deer directly away from him. When the arrow leaves the bow, the deer is at a distance of 38 m. When the arrow strikes, the deer is at a distance of 51.00 m. The speed of the arrow is 65.00 m/s. What must have been the speed of the deer? H...

Physics
Problem: A Super Ball is thrown to the ground with an initial downward velocity of 0.70 m/s and pops back up to the hand of the thrower; the total time elapsed is 0.71 s. What height was the Super Ball thrown from? Do I use the formula x = x0 + v0*t-0.5*g*t^2? x0=0 v0=-0.70 t=...

college
what is the present tense form of the verb to be in this sentence below the competition date and the prize amount--- still uncertain

trig
Thanks again. I really appreciate it.

trig
Thanks so much! If I may pick at your brain, how did you know to draw the isosceles triangle at the top and the large triangle inside the octogan to solve this problem.I didn't even consider this.

trig
In a regular octagon, AB is a diagonal and CD joins the midpoints of two opposite sides. The side length of the octagon is 4 cm. To the nearest tenth of a cm. find a)AB and b)CD. I'm stumped.

Precalculus
2 cm or 4 cm

Chemistry
I need help with getting started: 1.The crystal structure of an ionic compound consists of alternating cations and anions lying next to each other in three dimensions. If the cation radius is 55.1% of the anion radius and the distance between the cation nuclei is 587 pm, what ...

history
thank you

history
how did the romans make books?

history
yes, how was art religion and government linked in ancient egypt? thank you

history
how were religion,art and government linked to ancient egypt?

Env Science
Using a rake instead of a leaf blower Nutrient Recycling :Choosing to have no more than one child Population Control :Walking to class instead of driving Biodiversity :Taking your own reusable bag to the grocery store to carry things home in Recycling :Volunteering in a prairi...

Env Science
Using the 4 principles of sustainability Reliance on Solar Energy, Nutrient recycling, Biodiversity, and Population control. How would you classigy the following? Recycling soda cans :Using a rake instead of a leaf blower :Choosing to have no more than one child :Walking to cl...

Science Environmental
Using the 4 principles of sustainability Reliance on Solar Energy, Nutrient recycling, Biodiversity, and Population control. How would you classigy the following? • Recycling soda cans • Using a rake instead of a leaf blower • Choosing to have no more than one c...

Macroeconomics
Need a helpful website that i can read to help explain the following question. or some insight on this question. Between 1968 and 1980, the US economy experienced a slowdown in productivity growth. However, since the mid 1980s, the economy has experienced increases in the grow...

macroeconomics
Need a helpful website that i can read to help explain the following question. or some insight on this question. Between 1968 and 1980, the US economy experienced a slowdown in productivity growth. However, since the mid 1980s, the economy has experienced increases in the grow...

chemistry
Thanks for the tip

trig
Describe the changes in the graph of the following funciton t(h) = -2/3sin(h) + 1

trig
Describe the changes in the graph of the following funciton h(t) = sin(4/3 - 2t)

algebra
5z-20/33 /z-4/121

Math
What is the greatest common divisor of 54 and 144?

Biology
In peas, tall plants (T) are dominant to short (t), purple (P) is dominant to white flower color (p), and round seeds (R) are dominant to wrinkled seeds (r). What is the phenotype of a plant with genotype TtppRr?

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