Question

If the law of conservation of mass was to hold true, then 20.8 g of BaCl₂, on reaction with 9.8 g of H₂SO₄ will produce 7.3 g of HCl and _______ of BaSO₄.

(A) 11.65 g 

(B) 23.3 g 

(C) 25.5 g 

(D) 30.6 g

Answer 1

Correct option: (B) 23.3 g

BaCl₂ + H₂SO₄ → HCl + BaSO₄

∴ 20.8 + 9.8 = 7.3 + x

x = 23.3