Questions Asked on
June 27, 2010

  1. 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
  2. chm

    If 0.0490g of AgIO3 DISOLVES per liter of solution, calculate the solubility product constant.

    asked by ami
  3. 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 on-half of the neon atoms to escape.

    asked by Jetta
  4. 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
  5. chemistry

    calculate the pressure,in atmospheres, of 2.00 mol helium gas in a 10.0-L container at 27 celcius?

    asked by Jetta
  6. 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
  7. chemistry

    calculate the pressure,in atmospheres, of 2.00 mol helium gas in a 10.0-L container at 27 celcius?

    asked by Jetta
  8. 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
  9. CHEM 152

    Calculate the molar solubility of calcium carbonate in 0.10 M Ca(NO3)2. (Ksp= 2.8 x 10-8)

    asked by Car
  10. 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
  11. chm

    The molar solubility of PbBr2 at 250C is 1.0x10^-2. Calculate the Ksp.

    asked by ami
  12. 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
  13. 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
  14. algebra

    Graph he inequality on a plane 4y - 5x> 20 I am confused, can you please help?

    asked by Darla
  15. 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
  16. 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
  17. 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 10-5)

    asked by Car
  18. English

    In London's story about Alaska, the squat moose-hide 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
  19. CHEM 152

    At 50oC, the solubility of silver chloride, AgCl, is 5.2 x 10-4 g/100 mL. Calculate the Ksp at this temperature.

    asked by Car
  20. 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
  21. English

    In the poem Warren Pryor, what does the author pick this certain pattern or rhythm for the poem?

    asked by lola
  22. chemistry

    What is the mass/vol % ethanol in an ethanol-water 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
  23. 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
  24. 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
  25. 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
  26. 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
  27. 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
  28. AED 204

    Can anyone help me answer this question. I need it to be 200 to 300 words. Riley Behler, a third-grade 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
  29. Discriminant

    Use the discriminant to determine how many real-number 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
  30. 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
  31. 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
  32. 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
  33. 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
  34. 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
  35. 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
  36. 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
  37. Geology

    Briefly describe the two types of body waves an earthquake creates, please?

    asked by anonymous
  38. National Security policy

    What role should American's ideals play in it's National security policy history,current, hypothetical cases

    asked by Diana
  39. algebra2

    y-6=2 y+4 _= help 7

    asked by donna
  40. 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
  41. 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
  42. physics

    What is a cross sectional area of a bridge and does it affect the length of a bridge?

    asked by Rebecca
  43. AED 204

    Can anyone help me answer this question. I need it to be 200 to 300 words. Riley Behler, a third-grade 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
  44. English

    Which of these authors did not write mainly for enterainment? A Upton Sinclair B Stephen Crane C Charlotte Perkins Gilman

    asked by Anonymous
  45. English

    By 1919, people still were not able to watch movices in a group, only indivicually T/F

    asked by Anonymous
  46. 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
  47. 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
  48. 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
  49. Math-PLEASE HELP ASAP

    how do I find the two sets of points for the following algbrea equation? y=-3x+2

    asked by Michelle
  50. 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
  51. 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
  52. algebra

    p (z < .15)

    asked by felicia
  53. algebra2

    f+5 divide 7f+35 ____ ______= f-3 f-5

    asked by Tracy
  54. alg

    what are the non-permissible 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
  55. health

    please show examples og week nine final for human services admin.

    asked by james
  56. 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
  57. Finance

    Nance’s Restaurant, a local independent restaurant, is evaluating new point-of-sale (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
  58. 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
  59. 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
  60. English

    Between 1890-1919, women expended a great deal of effort to promote women's rights T/F

    asked by Anonymous
  61. 1st grade

    consonants initial middle and final

    asked by laurence
  62. 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~
  63. 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
  64. 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
  65. 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
  66. sociology

    I need a 200 page story describing how the yanomamo indians relate to a concept in the sociology book

    asked by DONNA
  67. science

    what is the difference between the First Law of Thermodynamics and the Second Law of Thermodynamics.

    asked by teine
  68. math

    p(z>2.3)

    asked by felicia
  69. algebra2

    find the LCM 21z power of 7 and 63z power of 4? im not sure what im doing? help please?

    asked by ann
  70. algebra2

    P (-1.1

    asked by felicia
  71. 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
  72. algebra2

    P (Z ¡Ü -.64)

    asked by felicia
  73. 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
  74. business

    a 10- to 15-slide 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
  75. 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
  76. 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
  77. ????

    How and when did Roberto Alagna lose his sight?

    asked by Ariel
  78. algebra2

    simplfiy by removing factors of 1. z power of 2 -8z+15 ____________________ z power of 2 2z-15 help please

    asked by Tracy
  79. 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
  80. Psychology

    What are the four key milestones in the development of cognitive psychology as a discipline?

    asked by Teresa
  81. algebra2

    2 + 7 ______ xs power of 2 and x powqer of 2s

    asked by ann
  82. algebra2

    i don't think there is a solution for this one. 3-y=1 _____ 4-y y-4 help please

    asked by donna
  83. algebra2

    q+5 + q-2 = 7/3 _____________ 3 2

    asked by me
  84. 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
  85. Equation

    w2 - 2w + 2 = 0 Use the discriminant to determine how many real-number solutions the equation has A.2 B.1 C.0

    asked by Lisa D
  86. 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
  87. finance

    Last year Chart Corp. had sales of $300,000, operating costs of $265,000, and year-end assets of $200,000. The debt-to-total 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
  88. HCA 210

    what are two positive patient outcomes

    asked by Mari
  89. math

    how will you solve these equations using matrices x+y=1 and 3x-2y=4/3

    asked by sha
  90. human services admin

    help with week nine final project

    asked by james
  91. 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
  92. 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
  93. 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
  94. English

    Which of these titles most accurately reflects the years from 1890-1919? 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
  95. English

    A despot would be enraptured at the thought of providing a pageant of the people's pleasure T/F

    asked by Anonymous
  96. English

    Every U.S. President was in favor of a woman's right to vote. T/F

    asked by Anonymous
  97. 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
  98. 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
  99. 10th grade

    compare and contrast the two prevailing winds that blow over Afica in June and September?

    asked by Ebrima
  100. 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
  101. occupational safty & health

    which universities in india lecture occupational safty & health for MSc please indtroduce me . thanks

    asked by fatemeh
  102. 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
  103. 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~
  104. 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
  105. 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
  106. statistics

    P (-1.1 ¡Ü Z ¡Ü 0)

    asked by felicia
  107. statistics

    P(Z > 2.3)

    asked by felicia
  108. 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(I|s1) =.15, P(I|s2) = .2, and P(I|s3) = .1. Compute

    asked by felicia