Question

How many moles of oxygen react with hydrogen to produce 22.8 mol of H2O? The balanced equation is as follows: 2H2 + O2 → 2H2O

How many grams of CO2 are produced if 35.48 mol of HCl are reacted according to this balanced chemical equation? CaCO3 + 2HCl → CaCl2 + CO2 + H2O

Answer 1

2H₂ + O₂ → 2H₂O

`(22.8 mol H2O)/(1)` *
`(1mol O2)/(2 mol H2O)` =
11.4 mols O₂

CaCO₃ + 2HCl → CaCl₂ + CO₂ + H₂O

`(35.48molHCl)/(1) * (1 mol CO2)/(2 mol HCl) * (44.01 grams CO2)/(1 mol CO2)` =
780.7 grams CO₂

hope this helped!