Total # Posts: 30
A lighter contains 3.59 g of butane. How many moles of butane are present at STP? Thoughts: So, correct me if I'm wrong however is it appropriate just to calculate its molar mass, and then use that molar mass and the given mass to figure out moles??
January 10, 2016
Based on data from 1999 to 2001, the rate of change in the annual net sales of Pepsi-Cola North America may be modeled by R(t) = −131t − 749.5 million dollars per year and the rate of change in the annual operating profit may be modeled by P(t) = 12t + 76 million ...
March 11, 2013
A tortoise and hare start from rest and have a race. As the race begins, both accelerate forward. The hare accelerates uniformly at a rate of 1.2 m/s2 for 4.3 seconds. It then continues at a constant speed for 11.7 seconds, before getting tired and slowing down with constant ...
February 3, 2013
find an expression for the magnitude of the initial velocity that a projectile must possess in order to leave the earth when air friction is negelcted. The gravitational constant is given as G= 6.67428*10^-11 m^3 kg^-1 s^-2 Please give lots of details in answer
April 27, 2011
Please ignore my previous answer in which I assumed that [A-] = [H+]. I think [A-] should be calculated using the partial titration data, and [H+] is known from the pH. My latest attempt is below: 0.0447 L total neut'n with NaOH 0.03443 L partial neut'n 0.1 M NaOH 0....
April 9, 2011
anyone else get the same answer? 0.0447 L total neut'n with NaOH 0.03443 L partial neut'n 0.1 M NaOH 0.00447 moles T Total 0.04720169 T (M) 0.003443 moles P Partial 0.040779344 P (M) 4.8 pH 1.58489E-05 [H] = [A-] 3.91117E-08 Ka
April 9, 2011
An aluminum block slides along a horizontal surface. The block has an initial speed of 11.6 m/s and an initial temperature of 10.7°C. The block eventually slides to rest due to friction. Assuming all the initial kinetic energy is converted to heat energy and all this ...
February 8, 2011
What fallacies, if any, are present in the following passage? Can you please give reasons for your answer, that is, if you say that a fallacy has been committed, then show where the fallacy occurred, and explain why you think it is a fallacy? Background: In this passage, ...
July 1, 2008
Ethics ADJ 235
As a manager you are charged with maintaining the business you are in. Your friend has breached the terms of his employment and you have a duty to report him to the appropriate authority or to demand he return or pay for the merchandise. This would be followed by his firing or...
June 30, 2008