When 10 g of calcium carbonate is decomposed completely, then 5.6 g of calcium oxide is formed along with the generation of carbon dioxide. Mass of the carbon dioxide formed is:

Question

Vimal Swarnkar · Accepted Answer

(a) 4.4 g. CaCO₃ → CaO + CO₂. By conservation of mass: CO₂ = 10 − 5.6 = 4.4 g → (a). Check: 100 g CaCO₃ gives 56 g CaO + 44 g CO₂.

Answer

(b) 5.6 g

Answer

(c) 4.6 g

Answer

(d) 4.8 g

Geo-Scientist Prelims 2020 General Studies Q90: When 10 g of calcium carbonate is decomposed completely, then 5.6 g…

QuestionChemistry / mass conservation