Total # Posts: 31
In the following reaction, how many liters of oxygen will react with 270 liters of ethene (C2H4) at STP? C2H4(g) + 3O2(g) ---> 2CO2(g) + 2H2O(g) The volume of one mole of gas at STP is 22.4 liters.
February 27, 2013
His methods for finding the answer is correct. The only problem is that he uses 9.81 for acceleration by gravity and in this particular problem all dimensions are in ft. So use 32.2 ft/sec and you will find the right answer.
October 4, 2009
Algebra / Scientific Notation
if you have 19.2 x 10 ^ 20 over 4.8 x 10 ^ 9 Would you first subtract 4.8 from 19.2 then subtract 10 ^ 9 from 10 ^20 Leaving an answer of 14.4 x 10^11???? you are using the word "over", which implies division. Why would you even consider subraction (19.2 x 10 ^ 20) ...
August 15, 2007
I am supposed to find the slope and y intercept of x=-9 Just waned to verify, but the line would be vertical and so the slope is undefined, but because the line never croses the y-axis how would you verbially say this. Would the y intercept be undefined or never or (i don'...
April 22, 2007
While Driving down a mountain, top finds that he has descended 1800 ft in elevation by the time he is 3.25 mi horizontally away from the top of the mountain. find the slope of his decent to the nearest hundredth. I am not sure where to start on this equation. I know that m = ...
April 19, 2007
If the total bill at a restaurant, including a 15% tip, is $65.32, what is the meanl alone? I just need help setting up the equation. I know it should be in the format of 100*_____=15*_______ but I feel like I am missing 2 parts of the equation. Can someone please help??? ...
April 5, 2007
I have a problem..... -4(2x-3)=-8x+5 I understand first you distribute the -4 so you would have -8x+12=-8x+5 Then if you try and move x over to either side you completley get rid of x.... am I missing something or is this problem not solvable? Thank you I think I just solved ...
March 29, 2007
Why are variables useful in algebra? I feel the use of variables make it difficult for many people to understand because it is subconcious that math is numbers, not letters.... Thank you! By using a variable, one may make use of a formula which is good for hundreds of ...
March 19, 2007
I am working on an autobiographical research paper that analyzes the influences of race as it relates to your community. Can someone please answer a few of the following questions to help me with different openions on the subject? Thank you! Do members of your community look ...
December 30, 2006
English / Cultural Diversity
I have an assignment as follows: Prepare a 1,400- to 1,750-word autobiographical research paper that analyzes the influences of race as it relates to your community. In your paper, write your first-person account of how human interactions in your community have been ...
December 30, 2006
I am having trouble identifing dangling modifers. example: If your baby does not like cold apple juice, it should be heated. What is the best way to identify dangling modifers? http://grammar.ccc.commnet.edu/grammar/modifiers.htm This is the absolute BEST website I've ...
December 13, 2006