Posted by Randy on Monday, April 16, 2012 at 8:29pm.
The steps you go through to solve stoichiometry problems.
1. Convert everything to mols.
2. Use the coefficients in the balanced equation to convert what you have to what you want.
3. Convert mols of what you want to other units (grams, liters, kg, etc).
For this problem. We already have mols so you can skip #1.
#2. Use the coefficients in the balanced equation to convert mols O2 (what we have) to mols CO (what we want).
1.35 mol O2 x (2 mol CO/1 mol O2) = 1.35 mol O2 x (2/1) = 2.70 mol O2 needed.
3. Convert 2.70 mol O2 to volume.
2.70 mol x (22.4 L/mol) = 60.48 which rounds to 60.5 L CO needed.
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