Answer:
9.92 g of Cl
Step-by-step explanation:
Well first find out the molar mass of calcium hypochlorite.
The molecular formula is,
CaO₂Cl₂
Adding the atomic masses we get the molar mass = 142.98 g/mol
This means,
142.98 f of CaO₂Cl₂ = 70.91 g of Cl
Therefore,
20 g of CaO₂Cl₂ = X
Solving for X,
X = (70.91 g of Cl × 20 g of CaO₂Cl₂) ÷ 142.98 f of CaO₂Cl₂
X = 9.92 g of Cl