Questions Asked on
June 23, 2012

  1. College Chemistry

    What are the concentrations of Pb2+ and Cu2+ when the cell potential falls to 0.370 V? Given: A voltaic cell consists of a Pb/Pb2+ half-cell and a Cu/Cu2+ half-cell at 25degrees C . The initial concentrations of Pb2+ and Cu2+ are 5.30×10−2 M and 1.60 M,

    asked by Maria
  2. chemistry

    Titration of 50.00 mL of 0.0521 M sodium oxalate, Na2C2O4, required 38.71 mL of a potassium permanganate solution: 5 C2O42- + 2MnO4- + 16H+ = 2Mn2+ + 10 CO2 + 8H2O Calculate the molarity of the potassium permanganate solution.

    asked by mary
  3. Trigonometry

    A person on a ship sailing due south at the rate of 15 miles an hour observes a lighthouse due west at 3p.m. At 5p.m. the lighthouse is 52degrees west of north. How far from the lighthouse was the ship at a)3p.m.? b)5p.m.? c)4p.m.? Please Show The Solution

    asked by Amber
  4. Accounting 2

    Journalizing liability transaction. The following transactions of denver pharmacies occurred during 2011 and 2012. Louis Welch is general manager of United Tanning Salons. During 2012, Welch worked for the company all year at a $6,200 monthly salary. He

    asked by Kevin
  5. help !

    Ricardo and Jane are standing under a tree in the middle of a pasture. An argument ensues, and they walk away in different directions. Ricardo walks 28.0 in a direction 60.0 west of north. Jane walks 10.0 in a direction 30.0 south of west. They then stop

    asked by Anonymous
  6. chemistry

    A 0.8378 g sample of calcium oxalate is heated to 1000oC, CaC2O4 = CaO + CO + CO2 Calculate (a) the moles of CaO remaining after ignition (b) the mmoles of CO evolved (c) the weight of CO2 produced.

    asked by mary
  7. Art

    Can you suggest a site where you can practice modals(used to express probability and possibility)? Thank you, Writeacher. I also need to find a reading comprehension at intermediate level with two/three different post-reading activities. Thank you very

    asked by Mike
  8. math

    A rectangular block is 2 cm wider than it is high and twice as long as it it wide. Let x cm be the height of the block. Find an expression for the total surface area, A cm2, in term of x.

    asked by Krystal.T
  9. math

    A person that fails to meet output standards could still have an efficiency measurement of more than 100%.

    asked by Anonymous
  10. science (very important)!!!!

    Calculate the final concentrations in mol/L of H+, Na+, Cl- and SO42- when the following three solutions are mixed together: 1000 cm3 of 0.10 mol dm-3 HCl 500 cm3 of 0.20 mol dm-3 NaCl 500 cm3 of 0.20 mol dm-3 of Na2SO4

    asked by Hadeel
  11. vocab

    the _ hunter will wield the bow and arrow at the archery contest?

    asked by shemeka
  12. Physics please help me :)

    If 3.4 mol of methane is heated so that the temperature of the gas increases 45 K while its pressure remains constant, how much heat is added to the gas?

    asked by Meg
  13. maths

    factorise: 1) x^4+10x^3+35x^2+50x+24 2) 3(a-b)(b-c)(c-a) 3) (a+b)^3-a-b

    asked by JOSHI
  14. CHEM

    g of alchol present in 2.45l of 75 proof gin density of ethonal is 0.798 g/ml =

    asked by April
  15. physics

    examples of: 1) acceleration against the direction of motion 2) acceleration in direction of motion 3)acceleration is uniform 4)acceleration is non-uniform

    asked by JOSHI
  16. Physics

    An object is released from rest at height h above the surface of the Earth, where h is much smaller than the radius of the Earth. It takes t seconds to fall to the ground. At what height should this object be released from rest in order to take 2t seconds

    asked by Liza
  17. language

    My went to the grocery store. She forgot her purse.

    asked by Anonymous
  18. taxes

    kaysia participates in a SIMPLE plan provided by her employer. In 2011, she contributes 6% of her $40,000 salary, and her employer contributes 3% to the plan

    asked by Anonymous
  19. spanish

    1). What is a "cognate"? 2). Why is learning cognates the most efficient and rapid way to learn to read, speak, increase vocabularly and get high marks on tests in a foreign language? Bonus question: What is the relationship between "cognates" and

    asked by Francis
  20. science

    Calculate the final concentrations in mol/L of H+, Na+, Cl- and SO42- when the following three solutions are mixed together: 1000 cm3 of 0.10 mol dm-3 HCl 500 cm3 of 0.20 mol dm-3 NaCl 500 cm3 of 0.20 mol dm-3 of Na2SO4

    asked by HADEEL
  21. science!

    How much of a 0.10 M H2SO4 solution is required to neutralise 1g of NaOH? Express your answer in cm3.

    asked by HADEEL
  22. Foreign languages

    I just have one more doubts concerning the use of commas. 1)....... based on personal duty, hard work, respectability, and charity. Do I need to set the comma before and? 2) The telescreen transmits and receives all the time. (Do I need to include "data"?)

    asked by John
  23. English

    Interpretive Argument #1: The Epic of Gilgamesh The Nature of Life in Uruk Thesis: Assess the overall condition of life in Uruk. Supportive points: State the advantages and/or disadvantages of the following in topic sentences: Topic Sentence: Being a

    asked by flash monkey
  24. physics

    a missile is launched an angle of 26.5 with respect to the horizontal. if it travels in the straight line over the level Terran for 2 minute and its average speed is 6000 mile per hour. what is its altitude?

    asked by jo
  25. composition

    In Weeks 9 and 10, you will develop an essay using definition as the rhetorical strategy. This week, you will complete your essay. Review the criteria for a definition essay. Continue with the essay you started in Week 9. Expand your definition by

    asked by jennifer
  26. ECONOMICS

    Wilpen Company, a price-setting firm, produces nearly 80 percent of all tennis balls purchased in the United States. Wilpen estimates the U.S. demand for its tennis balls by using the following linear specification:

    asked by Anonymous
  27. chemistry

    a sample of methane contain 4.5x10 the power of24 h atom.calculate the mass methane

    asked by a
  28. maths

    write expansions: 1) (4/3x+3/4y)^3

    asked by JOSHI
  29. interior decoration

    Which one of the following statements accurately reflect a characteristic of selling? What characteristic of a good salesperson would help overcome a client's objection to a high price? Which of the following strategies would you use to attract customers

    asked by linda
  30. math

    Mrs Sim gave pencils to every student in her class. If she gave each student 8 pencils, she would have 3 pencils left. If she gave 3 pencils to each student, she would have 188 pencils left. How mant students were there in Mrs Sims's class?

    asked by unknown
  31. prealgebra/ check answer please

    John who is an amateur golfer spends 3 hours every day practicing golf. What percentage of his waking hours does John spend practicing golf if he sleeps 9 hours a day? 24-9=15 3/15= 0.2% Answer I am unsure if the steps are right

    asked by toni
  32. prealgebra/ check answer please

    If 1,790 Mega Watts of power, out of the 3,000 Mega Watts generated by a power utility, reach the destination, what percentage of the generated power reaches its destination? 1,790 - 3,000 = 1,210 1,790 divided by 1,210 = 1.4 Answer 1.4% Unsure

    asked by toni
  33. chemistry HELP!

    How much of a 0.10 M H2SO4 solution is required to neutralise 1g of NaOH? Express your answer in cm3.

    asked by mary
  34. physics

    An alpha particle initally moving at a speed of 7.10 x10^5 m/s goes through a potetial difference of 2500V. determine the final speed. thanks!

    asked by Toby
  35. ECONOMICS

    In an article about the financial problems of USA Today, Newsweek reported that the paper was losing about $20 million a year. A Wall Street analyst said that the paper should raise its price from 50 cents to 75 cents, which he estimated would bring in an

    asked by Anonymous
  36. math

    Chris has 7 whistles. He needs 10 whistles for party. Which number sentence can help you find how many more whistles Chris needs?

    asked by Pope
  37. algebra

    Which of the ones below are expressions? 3b + c 56 - n = 8 5 + 6c 5 = 2y 4 = 6 -3m

    asked by sassie
  38. math

    Min's fish are sick,and she wants to add medicine to the tank. The base of the fish tank measures 40 cm by 25 cm.The tank is filled with water to a height of about 20 cm.How many drops of medicine should Min add to her tank? Reminder:1L=1,000cm squared

    asked by Joe
  39. introducing to accounting

    After the closing entries are posted to the ledger, each revenue account will have a) zero balance. b)debit balance c) a credit balance d)either a debit or a credit balance. MY ANSWER IS D BUT I AM NOT SURE :)

    asked by VEDRANA
  40. Art

    Can you check these sentences, please? 1) You are forbidden to enter this area. You mustn't enter this area. 2) It wasn't necessary for John to go to work because it was Sunday. He didn't have to go to work.

    asked by Mike
  41. Physics

    During a training exercise a cannon ball is fired with a muzzle velocity of 84.9 m/s at an angle of 45o above the horizontal. Determine how far from the cannon the ball will land when it hits the ground.

    asked by Aria
  42. economie

    - A study of the causes of the American Revolution of 1776, the French Revolution of 1789, and the Russian Revolution of 1917 best supports the generalization that revolution is most likely to occur when?

    asked by bertrand
  43. physics

    a television antenna is on the roof of the building. from a pt. on the ground 36.0 feet from the building , the angle of elevation of the top and the bottom of the antenna are 51 degree celsiusand 42 degree celsuis respectively. how tall is antenna?

    asked by jo
  44. english

    incorrect cluses

    asked by angelo
  45. interior decoration

    What is pre-shopping? A cold call is a ? The primary purpose of qualifying clients is to?

    asked by linda
  46. pre-algebra

    a math professor is teachin two classes. The first class has 100 student enrolled and the second class has 75 estudent enrolled if 3/4 estudent of the first class pass and 2/5 student of the second class pass. how many estydent pass in total

    asked by melissa
  47. business

    I need how to write Quality Management Plan

    asked by Abdul
  48. business

    Quality Management Plan for followoing case: You are working for We Are Big, Inc., an international firm with over 100,000 employees located in several different countries. A strategic goal is to help improve the environment while increasing revenues and

    asked by Abdul
  49. interior decoration

    Which one of the following statements describes benefit ? A self-employment tax is a? The best style of selling to adopt is ? When should you give your client a signer copy of the inventory list?

    asked by linda
  50. Psychology And Your Life

    I am trying to construct a sentence using Maslow's theory on Physiological Needs. It can be personal or hypothetical.

    asked by Christy
  51. database processing-computer management

    The simplest form of binary relationship is : a)1:01 am b)1:N c)12:01:00 AM d)recursivE MY ANSWER IS B ,BUT I AM NOT SURE:)

    asked by VEDRANA
  52. American history

    Within slave society, evidence suggested that the highest social status was ascribed to

    asked by Maria Santillan
  53. math

    find mean median and mode of 68, 79, 72 88 and 96

    asked by kim
  54. Physics

    A lead ball has a volume of 94.3 cm3 at 19.3°C. What is the change in volume when its temperature changes to 34.3°C?

    asked by Bobby
  55. 5 grade math

    Min's fish are sick,and she wants to add medicine to the tank. The base of the fish tank measures 40 cm by 25 cm.The tank is filled with water to a height of about 20 cm.How many drops of medicine should Min add to her tank? Reminder:1L=1,000cm squared

    asked by Joe
  56. algebra1

    factor: 180s^2+300sf+125f^2

    asked by kathy
  57. trig

    given cot-A square root of 5, find cot-B at the 4th quadrant.

    asked by ash
  58. Algebra

    P= 30.000, r=0.11, and n= 4 years A=P (1 +r) n

    asked by Tela