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Please help and explain each problem.

1. If 29.0 L of methane, CH4, undergoes complete
combustion at 0.961 atm and 140°C, 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?

  • Chemistry -

    I'll be glad to help if you want to help yourself but I'm not going to do all of your work. What don't you understand? You say you have tried but can't get the right answer. So show what you've done so we can get an idea where you're going wrong. You could have done it by now with the time you've wasted reposting and waiting.

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