Question

How many grams of chlorine are required to react completely with 5.00 moles of sodium to produce sodium chloride? 2Na + Cl2 => 2NaCl

Answer 1

$2Na+Cl_2\to 2NaCl$

Mole ratio, sodium: chlorine = 2:1

$moles$ of chlorine =$5/2=2.5moles$

mass of chlorine required $=70.90\times 2.5=177.25g$