Questions Asked on
August 2, 2010

  1. Chemistry

    If BaCO3 is placed in an evacuated flask, what partial pressure of CO2 will be present when the reaction reaches equilibrium? 298K BaCO3(s)-->BaO(s)+CO2(g)

    asked by Ally
  2. Chemistry

    For many years the recovery of gold-that is, the seperation of gold from other materials-involved the use of potassium cyanide: 4AU + 8KCN + 02 +2H20 -> 4KAu(CN)2 + 4KOH What is the minimum amount of KCN in moles needed to extract 29.0 g (about an ounce)

    asked by Kate
  3. Chemistry

    find the pH of each of the following solutions of mixtures of acids: .125M in HBr and .130 M in HCHO2, .155M in HNO2 and 9.0*10^-2M in HNO3, 5.5×10−2 in acetic acid and 5.5×10−2 in hydrocyanic acid

    asked by Kristen
  4. trigo

    Scientist estimate the heights of features on the moon by measuring the lenghts of the shadows they cast on the moon's surface. From a photograph, you find that the shadow cast on the inside of a crater by its rim is 325 meters long. At the time the

    asked by trigofunctions
  5. Finance

    You are currently only invested in the Natasha Fund (aside from risk-free securities). It has an expected return of 14% with a volatility of 20%. Currently, the risk-free rate of interest of 3.8%. Your broker suggests that you add Hannah Corporation to

    asked by Anonymous
  6. physics

    Strictly speaking, you weigh a tiny bit less when you are in the lobby of a massive skyscraper than you do at home. Why is this so?

    asked by Thy
  7. trigo

    a tugboat is 36km due north of lighthouse C. Lighthouse B is directly east of lighthouse C. The lighthouses are 53km apart. Find the bearing og lighthouse B from the tugboat and the distance of lighthouse B from the tugboat.

    asked by trigofunctions
  8. economics

    ) The demand curve for haircuts at Terry barnyards Hair Design is P=20-0.20Q Where Q is the number of cuts per week and P is the price of a haircut. Terry is considered raising her price above the current price of $15. Terry is unwilling to raise price if

    asked by Anonymous
  9. random variables

    For the standard normal random variable Z, compute the following probabilities. For the following problems, use four decimal places. 16. P (0 less than or equal to Z less than or equal .9) 17. P (-1.3 less than or equal to Z less than or equal to) 18. P(Z

    asked by Felicia
  10. Chemistry

    A gaseous mixture of O2, H2, and N2 has a total pressure of 1.50 atm and contains 8.20 g of each gas. Find the partial pressure of each gas in the mixture They don't give you Volume and Temperature. Please explain it to me, thank you!

    asked by Joseph
  11. Chemistry

    If 20ml of glacial acetic acid (pure HC2H3O2) is diluted to 1.5L with water, what is the pH of the resulting solution. The density of glacial acetic acid is 1.08g/ml

    asked by Kristen
  12. Finance

    31. Suppose the market portfolio is equally likely to increase by 30% or decrease by 10%. a. Calculate the beta of a firm that goes up on average by 43% when the market goes up and goes down by 17% when the market goes down. b. Calculate the beta of a firm

    asked by Anonymous
  13. trigo

    A block bordering Sapphire Street is a right triangle. You start walking around the block, taking 125 paces on Sapphire Street and 102 paces on Diamond Street. a. At what angle do Diamond and Sapphire Streets intersect? b. How many paces must you take on

    asked by trigofunctions
  14. math

    Employees of a discount appliance store receive an additional 20% off of the lowest price employee purchases a dishwasher during a 15% off sale how much will he pay if the dishwasher is 450$?

    asked by pyt
  15. PHYSICS

    A steel ball is dropped from a hight of 50 m ,how far does the ball travel during the 3rd second of the fall. my anweres was 2.0, but that's not right, im confused where i went wrong please help thanks

    asked by natakapriya
  16. Finance

    Using the data in the following table, estimate (a) he average return and volatility for each stock, (b) the covariance between the stocks, and (c) the correlation between these two stocks.

    asked by Anonymous
  17. Chemistry

    Three gases (8.00 of methane, , 18.0 of ethane, , and an unknown amount of propane, ) were added to the same 10.0- container. At 23.0 , the total pressure in the container is 3.90 . Calculate the partial pressure of each gas in the container.

    asked by Stephen
  18. english

    What does the fence in "Araby" symbolize?

    asked by Seashell4
  19. Finance

    21. Consider an economy with two types of firms, S and I. S firms all move together. I firms move independently. For both types of firms, there is a 60% probability that the firms will have a 15% return and a 40% probability that the firms will have a -10%

    asked by Anonymous
  20. chem

    Say I have 50 mL of bromocresol green indicator. This solution has 80mg/L. the molar mass is 698 g/mol. Then say I took 10 mL of that solution and dilute it with .4 M HCI. I want to find the concentration/molarity of bromocresol green. This is what I have

    asked by Anonymous
  21. US History II

    In that tape, Nixon agrees that administration officials should approach Richard Helms, Director of the CIA, and Vernon A. Walters, Deputy Director, and ask them to request L. Patrick Gray, Acting Director of the FBI, to halt the Bureau's investigation

    asked by Amy~
  22. AP Biology

    They type of learning that is involved in predator/prey interactions where an alteration in behavior is a response to stimulus is called A. Habituation Learning B. Cognitive learning C. Instinctive Learning D. Associative Learning E. Non-associative

    asked by Allison
  23. Finance

    Suppose the market risk premium is 6.5% and the risk-free interest rate is 5%. Calculate the cost of capital of investing in a project with a beta of 1.2.

    asked by Anonymous
  24. Finance

    Consider the following two, completely separate, economies. Te expected return and volatility of all stocks in both economies is the same. In the first economy, all stocks move together- in good times all prices rise together and in bad times they all fall

    asked by Anonymous
  25. bio 100

    2. Photosynthetic saturation is the maximum rate of photosynthesis. What value of light intensity produced photosynthetic saturation in corn leaves?

    asked by Anonymous
  26. business

    For this assignment you are to imagine that you are part of a select marketing group. This select group has been asked to consider the Colorado City Convention and Visitors Bureau survey of 25 hotels in the local area. The survey is concerned with the

    asked by ron
  27. maths

    If the roots of the equation x2+a2=8x+6a are real, then a belongs to

    asked by chotu
  28. accounting

    A new inventory management system for ABC Company could be developed at a cost of $200,000. The estimated net operating costs and estimated net benefits over six years of operation would be: Year Estimated Net Operation Estimated NetBenefits 0 200,000 0 1

    asked by YENY
  29. chemistry-molarity

    Say I have 50 mL of bromocresol green indicator. This solution has 80mg/L. the molar mass is 698 g/mol. Then say I took 10 mL of that solution and dilute it with .4 M HCI. I want to find the concentration/molarity of bromocresol green. This is what I have

    asked by Anonymous
  30. math

    Calculate the speed of an artificial earth satellite, assuming that it is travelling at an altitude h of 140 Km above the surface of the earth where g=9.8m/s2. The radius of earth R is 6373Km.

    asked by alobi
  31. Algebra

    Solve the system by either elimation or substitution: x+8y=18 y=-2/7x-18/7

    asked by Katrina
  32. science

    What causes soil erosion

    asked by Liana
  33. Physics

    A pilot wants to fly a plane directly eastward when the wind is from the north at 55 miles per hour. if the air speed is 230 miles per hour, in what direction must the plane be headed?

    asked by Dude
  34. chemistry

    # Which of the following is true for the reaction NH3(l) NH3(g) at –33°C and 1 atm pressure? (The normal boiling point for NH3 is –33°C.) Answer Question 8 answers ΔH = 0 ΔS = 0 ΔH = PΔV ΔH = ΔnRT ΔH = TΔS

    asked by Chemdum
  35. math

    use the divisibility rules to determine wheather the first number is divisible by the second. 1.279;3 -279/3=93 2.1,240;6 -1,240/6=206.6666667 3.3,250;5 -3,250/5=650 4.835;4 - 835/4=208.75 5.1,249;8 - 1,249/8=156.125 6.2,352;2 - 2352/2=1176

    asked by kamleen
  36. Reading

    For my summer reading project, they require us to state the point of view and to give a quote from the book (the Alchemyst) to prove the book was written in that point of view. The book is omniscient, and almost every chapter it is a different character

    asked by Gaby
  37. AP Biology

    What is not dependent on sunlight as a source of energy? A. Benthic Zone B. Pelagic Zone C. Neritic Zone D. Taiga E. Tundra I think it's A, B, or C. Is it?

    asked by Allison
  38. math

    a recipe for punch calls for 4 cups of lemonade for every 6 quart of fruit juice. how many quarts of fruits juice should. elizabeth use if she has already added 10 cups of lemonade

    asked by kamleen
  39. physic

    a 40.0 ohm resistor and a 90.0 ohm resistor are connected in parallel, and the combination is connected across a 120 V dc line. A)what is the resistance of the parallel combination. B)what is the total current through the parallel combination. C)what is

    asked by paul
  40. psychology

    need help analyzing hoe neuro processes effect behavior and impact the field of biological psychology. just need some help understanding this question please....

    asked by autumn
  41. math

    A pole that is 2.9m tall casts a shadow that is 1.39m long. At the same time, a nearby building casts a shadow that is 36.75m long. How tall is the building.

    asked by Jessica Padilla
  42. Coporate finance

    Consider the following two, completely separate, economies. The expected return violatility of all stocks in both economies is the same. In the first economy, all stocks move together-in good times all prices rise together and in bad times they all fall

    asked by Anonymous
  43. Statistics

    a score of 10 indicates severe depression, while a score of 0 indicates no depression. From reports, she is able to find out about past testing. Fourth graders at her school usually score 5 on the scale, but the variation is not known. Her sample of 20

    asked by anonymous
  44. Physics

    (a) CO2 emissions C from a nation’s energy system can be expressed as: C = Population x Energy consumption per person x CO2 emissions per unit of energy consumption. Initially, total emissions are 600 million tonnes of CO2 per year. If, over a 50-year

    asked by Raven
  45. math

    a. Separate the fractions; 2/6, 2/5, 6/13, 1/25, 7/8, and 9/29 into two categories; those that can be written as a terminating decimal and those that cannot. Write an explanation of how you made your decision. b. orm a conjecture about which ractions can

    asked by Betty
  46. chemistry

    Sterling silver, an alloy of silver and copper, contains 7.5 percent copper by mass and has a density of 10.3 g/cm3. How many copper atoms are in a sterling silver sphere whose radius is 2.0 in?

    asked by Joseph
  47. random variables

    For the standard normal random variable Z, compute the following probabilities. For the following problems, use four decimal places. 16. P (0 ¡Ü Z ¡Ü .9) 17. P (-1.3 ¡Ü Z ¡Ü 0) 18. P(Z > 2.5) 19. P(Z ¡Ý -.75) 20. P(Z < .05) 21. P (Z ¡Ü -.72)

    asked by Donna
  48. accounting

    An audit trail allows an individual to track a transaction from the journal entry to the general ledger through to the financial statements. The audit trail can also find all the transactions that comprise the dollar amount for each account listed on the

    asked by Constance
  49. algebra

    If lynn can type a page in p minutes what piece of a page can she type ing 5 minutes? 5/p p+5 p-5 p/5 1-p-5

    asked by Willie
  50. AP US History

    Discuss the relations netween the English settlers and the Indians of the southern Atlantic coast.

    asked by Ariyonia
  51. algebra

    9*10 power of -4 divided by 3*10 power of -6 What is the scientific notation?

    asked by Simone
  52. HELP ; MATH

    9. A/12 = 3/9 A = 4 10. 8/B = 12/21 b = 14 11. 24/36 = c/15 c = 10 12. 27/6 = 18/d d = 4 13. 7/8 = e/56 e = 49 14. 27/36 = 6/f f = 8

    asked by kamleen
  53. hum 130

    How are newer religions and older ones similar

    asked by derrius
  54. math

    hannah made 4 dozen muffins. list the ways in which she could package the muffins so that there would be the same number of muffins in each package with no muffins left over

    asked by kamleen
  55. geometry

    Square 1 has an area of 49 sq. in. if each sideof square 2 is 3 times as long as each side of square 1 then waht id the perimeter of square 2

    asked by Anonymous
  56. health

    It's my first time writing a research paper, I'm not sure what it should look like and was hoping someone would have an example of one on line. I have four questions I need to answer and if I could see an example of a paper written it would really help me

    asked by Teresa
  57. Ethics

    I'm writing a research paper regarding HIPAA. There are 4 questions to answer, I've never written a paper before and I would like to see an example of a paper with questions and what it should look like with references and citations. Thanks!

    asked by Anonymous
  58. COMPUTER.

    If you are working in an environment that requires the fastest possible processing speed what does this mean to you as the lead computer expert at the organization?

    asked by UNKNOWN.
  59. Physics

    A cup of mass m, placed on the edge of a table of height h, has potential energy mgh, where g is the acceleration due to gravity. Someone slams a door, causing the cup to fall to the floor. If h = 100 cm, what is the approximate speed of the cup when it

    asked by Raven
  60. maths

    For all real x, the minimum value of 1-x+x2/1+x+x2 is

    asked by chotu
  61. Math and Science 6th grade

    Hello! I need help to find a source where I can find the accurate weather of a week in July. I would very much appreciate a direct link to a website. Thanks!

    asked by Anonymous
  62. english

    A project design has been approved by management. The engineering team is about to start production of the new line. I want to be sure this process goes by smoothly. I need to come up with a communication plan to address successful development and delivery

    asked by karen
  63. spell

    it rained everyday of our vacation nevertheless; we had a great time

    asked by Anonymous
  64. phone/internet

    Hi, this isn't anything to do with home work. (Thank God I'm done with homeschooling)But I have a question to do with internet connection. I just got a new phone yesterday, and it needs connection to the wireless internet at my house so i can use internet

    asked by y912f
  65. english

    change of narration in "we are not afraid to die...if we can all be together

    asked by micky
  66. math

    if sally can paint a house in4 hours and john can paint a house in 6 hours how l of them to paint the house together????

    asked by wk
  67. math

    determine wheather 453 is divisible by 3,9 my answer is yes because 3and nine are equally divided by 3,9 is 2,3,4,6,8 divusble by 672 is 3,9 999 is 5200 divisble by 2,5,10 is 504 divisible by 2,4,6,8

    asked by kamleen
  68. math

    2a/3=2+4a -2.4 2.4 1.3 -1.3 0

    asked by pyt
  69. math

    is 504 divisible by 2,4,6,8 is 111 divisible by 3,9 is 3,217 divisible by 3 is 804 divisible by 2,4,6,8

    asked by kamleen
  70. math

    if 8 gallons of gasoline cost 11.20 how much would 10 gallons cost

    asked by kamleen
  71. math

    a leap year occurs when the year is divisble by 100 but not divisible by 400 are not leap years. determine whether the following years are leap years

    asked by kamleen
  72. health

    Identify three different types of health care workers who provide direct patient care, and describe the role each plays in providing patient care. Would a nurse be one?

    asked by cassie
  73. fnancial accounting

    Joseph Corporation needs to calculate their September 30 cash balance per books. The following information is available before any adjustments were made based on the monthly bank statement. Outstanding checks $690 Balance per books $6,111 NSF check $275

    asked by nichala
  74. COMPUTER.

    What is the time measurement used in the description of Moore’s Law?

    asked by UNKNOWN.
  75. science

    What is the funtion of ionizing and nonionizing radiation?

    asked by need help
  76. US History II

    Would the fall of European countries ( Soviet Union) be considered a turning point in American History?

    asked by Amy~
  77. humanities

    what is the name of a individual or groups that pursue liberty and happiness in the 20th century

    asked by Jolander
  78. math

    samn has a savings account that increased in a value over a twelve month period from 8765.00 to 9006.04 he made no deposits or withdrawls in that time. What percent interest did he receive for the 12 month period??

    asked by Caligo
  79. math/fractions

    kelly had 24 customers open an account during the month, which is 60 percent of her monthly goal. What is her monthly goal? How do I figure this???

    asked by Caligo
  80. US History II

    Which one would be right the Cold War ends as USSR dissolves in 1989 or 1991 ? I'm getting different years from different websites.

    asked by Amy~
  81. equation

    2A/3=8+4A

    asked by pyt
  82. algebra

    if the diameter of a circle is 1.3*10power -12, what is the radius?

    asked by Simone
  83. cultural diversity

    If someone told you (a) Asian Americans and Pacific Islanders belong to a single Asian american culture, what do you say to them to convince them both statements are misconceptions?

    asked by john smith
  84. AP US History

    Compare and contrast England's southern colonies;what features did they have in common,and what features were peculiar to each region?

    asked by Ariyonia
  85. math

    simply 12/18 = 2;3 15/25 = 3;5 32/40 = 4;5 6/14 = 3;7 8/15 = 8;15 9/12 = 3;4 12/27 = 4;9 9/12 = 3;4

    asked by kamleen
  86. math

    South America’s population was 515,000,000 people in 2000 and 38,000,000 in 1900. To find the rate of increase, we should begin with subtracting to find the actual increase –

    asked by Sara
  87. pre-algebra

    2/x-5=1/x+2 the teacher said i got it wrong when i got -1/7 he got -9 if that is please explain.

    asked by melissa
  88. math

    on a map the scale is 1 inch equal 160 miles. what is the atual distance is 3 1/2 inches

    asked by kamleen
  89. math

    one bag of jelly beans contains 14 red jelly beans. how many red jelly beans would be found in 4 bag of jelly beans

    asked by kamleen
  90. math

    anna and two of her friends went apple picking. they picked 156 . can they divide the apples does each receive

    asked by kamleen
  91. English II

    How did the war began in Iraq?

    asked by Betty
  92. web design

    HI...WOULD ANYONE KNOW WHERE I MIGHT BE ABLE TO OBTAIN IMAGE EXAMPLES OF RELATIVE AND ABSOLUTE LINKS?

    asked by Jim
  93. math

    I am bouncing this questions for an hour now and still have not come up with answer I believe in. Can you solve for a variable in an equation? Explain the answer Can you help?

    asked by Shaira
  94. Calculus

    Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified axis. y=0, y=x(3-x) about the axis x = 0

    asked by Grant
  95. english

    What are the nouns in this sentence? In 1999, John went to Disney World for vacation.

    asked by cynthia