When a mixture of 13.0 g of acetylene (C2H2) and 13.0 g of oxygen (O2) is ignited, the resultant combustion reaction produces CO2 and H2O.

Question

How many grams of C2H2 are present after the reaction is complete?
How many grams of CO2 are present after the reaction is complete?
How many grams of H2O are present after the reaction is complete?

Answer 1

I worked this part of a multipart question for K.G. Here is the link. Post your work if you have questions.
https://www.jiskha.com/questions/1816833/when-a-mixture-of-13-0-g-of-acetylene-c2h2-and-13-0-g-of-oxygen-o2-is-ignited-the

Answer 2

@DrBob222
=.164 or .16
0.5 - .164= .336 or 0.5 - .16= .34

13g = mols X molar mass
what would the mols be? and
what would be the molar mass?

Answer 3

Note that I said "about" 0.16. Since I rounded and used 0.41, which is also an about, I rounded to 2 decimals. You should calculate to 3 places if you wish but if so then redo the 0.41 also to see that that numbers is. I think it's 0.406 to three places.
I also calculated the molar mass of C2H2 (28) and O2 (32).