Consider the reaction between hcl and o2: 4hcl grams + o2 - 2 h2o liquid + 2 cl2 grams when 63.1 grams of hcl react with 17.2 g of o2, 49.3 grams of cl2 are collected. what is the limiting reactant?

The balanced equation for the above reaction is as follows;
4HCl + O₂ ---> 2H₂O + 2Cl₂
stoichiometry of HCl to O₂ is 4:1
number of HCl moles present - 63.1 g / 36.5 g/mol = 1.73 mol
number of O₂ moles present - 17.2 g / 32 g/mol = 0.54 mol
if HCl is the limiting reactant; then number of O₂ moles = 1.73/4 = 0.43 mol
There are 0.54 mol present and only 0.43 mol are required to react. Therefore HCl is the limiting reactant and O₂ is in excess.

Perimeter? wheres the answers