August 23, 2014

Homework Help: Chemistry

Posted by Anonymous on Thursday, October 10, 2013 at 8:41pm.

Please help and explain each problem.

1. If 29.0 L of methane, CH4, undergoes complete
combustion at 0.961 atm and 140C, how many liters
of each product would be present at the same
temperature and pressure?

2 If air is 20.9% oxygen by volume,
a. how many liters of air are needed for complete
combustion of 25.0 L of octane vapor, C8H18?
b. what volume of each product is produced?

3.Methanol, CH3OH, is made by causing carbon
monoxide and hydrogen gases to react at high
temperature and pressure. If 4.50 102 mL CO and
8.25 102 mL H2 are mixed,
a. which reactant is present in excess?
b. how much of that reactant remains after the
c. what volume of CH3OH is produced, assuming the
same pressure?

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