Assuming fully decomposed, the volume of CO₂ released at STP on heating 9.85g

Assuming fully decomposed, the volume of CO₂ released at STP on heating 9.85 g of BaCO₃(Atomic mass Ba=137) will be

Options

(a) 2.24 L
(b) 4.96 L
(c) 1.12L
(d) 0.84L

Correct Answer:

1.12L

Explanation:

BaCO₃ → BaO+ CO₂
Atomic Mass of Ba=137
Atomic Mass of C=12
Atomic Mass of O=16
Molecular Mass of BaCO₃ = 137 + 12 + (16*3) = 197
197 gm of BaCO₃ released carbondioxide = 22.4 litre at STP
1 gm of BaCO₃ released carbondioxide = 22.4/197 litre
9.85 gm of BaCO₃ released carbondioxide = 22.4/197 x 9.85 = 1.12 litre

admin:

Related Questions

  1. Vapour density of a gas is 22. What is its molecular weight
  2. When 10 g of a non-volatile solute is dissolved in 100 g of benzene ,
  3. In the extraction of aluminium from bauxite, cryolite is used to
  4. From the colligative properties of solution which one is the best method for
  5. The weight of one molecule of a compound C₆₀H₁₂₂ is