Questions Asked on
June 23, 2012

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+ halfcell and a Cu/Cu2+ halfcell at 25degrees C . The initial concentrations of Pb2+ and Cu2+ are 5.30×10−2 M and 1.60 M,
asked by Maria 
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 
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 
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 
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 
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 
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 postreading activities. Thank you very
asked by Mike 
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 
math
A person that fails to meet output standards could still have an efficiency measurement of more than 100%.
asked by Anonymous 
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 dm3 HCl 500 cm3 of 0.20 mol dm3 NaCl 500 cm3 of 0.20 mol dm3 of Na2SO4
asked by Hadeel 
vocab
the _ hunter will wield the bow and arrow at the archery contest?
asked by shemeka 
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 
maths
factorise: 1) x^4+10x^3+35x^2+50x+24 2) 3(ab)(bc)(ca) 3) (a+b)^3ab
asked by JOSHI 
CHEM
g of alchol present in 2.45l of 75 proof gin density of ethonal is 0.798 g/ml =
asked by April 
physics
examples of: 1) acceleration against the direction of motion 2) acceleration in direction of motion 3)acceleration is uniform 4)acceleration is nonuniform
asked by JOSHI 
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 
language
My went to the grocery store. She forgot her purse.
asked by Anonymous 
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 
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 
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 dm3 HCl 500 cm3 of 0.20 mol dm3 NaCl 500 cm3 of 0.20 mol dm3 of Na2SO4
asked by HADEEL 
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 
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 
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 
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 
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 
ECONOMICS
Wilpen Company, a pricesetting 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 
chemistry
a sample of methane contain 4.5x10 the power of24 h atom.calculate the mass methane
asked by a 
maths
write expansions: 1) (4/3x+3/4y)^3
asked by JOSHI 
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 
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 
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? 249=15 3/15= 0.2% Answer I am unsure if the steps are right
asked by toni 
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 
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 
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 
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 
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 
algebra
Which of the ones below are expressions? 3b + c 56  n = 8 5 + 6c 5 = 2y 4 = 6 3m
asked by sassie 
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 
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 
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 
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 
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 
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 
english
incorrect cluses
asked by angelo 
interior decoration
What is preshopping? A cold call is a ? The primary purpose of qualifying clients is to?
asked by linda 
prealgebra
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 
business
I need how to write Quality Management Plan
asked by Abdul 
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 
interior decoration
Which one of the following statements describes benefit ? A selfemployment 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 
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 
database processingcomputer 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 
American history
Within slave society, evidence suggested that the highest social status was ascribed to
asked by Maria Santillan 
math
find mean median and mode of 68, 79, 72 88 and 96
asked by kim 
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 
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 
algebra1
factor: 180s^2+300sf+125f^2
asked by kathy 
trig
given cotA square root of 5, find cotB at the 4th quadrant.
asked by ash 
Algebra
P= 30.000, r=0.11, and n= 4 years A=P (1 +r) n
asked by Tela