Topics
Miscellaneous  Stoichiometric Calculations
O2 + C > CO2
O2 + C > CO2 This is balanced! Step 3 Decide your known and unknown quantities. O2 + C > CO2 Xg 60g We know that we are looking for how many grams of Oxygen would be needed to react with 60g of Carbon, so we know that Oxygen is our unknown quantity., while Carbon is our known quantity. Step 4 Convert your grams to mols. 60g of C = 1 mol  = 5 mols of C 12.0 g Step 5 Do your molmol ratio. answer from g to mol conversion = coefficient of unknown quantity  coefficient of known quantity 5 mols of C = 1 mol of O2  = 5 mols of O2 1 mol of C (We simply multiplied 5 by 1, and then divided by 1) Step 6 Convert mols to grams. 5 mols of O2 = 32.0 g of O2  = 160g of O2 1 mol
