Question

How many gram of quick lime is produced on heating 10gm of marble?

Answer 1

Answer:

Pure limestone is calcium carbonate, i.e., CaCO3. Pure quicklime is calcium oxide, i.e., CaO. The atomic weights of calcium, carbon and oxygen are 40, 12 and 16 respectively. So 1 mole of limestone weighs 100 grams, 1 mole of quicklime weighs 56 grams. A “pure” conversion of 400 grams of limestone would, therefore, yield 224 grams of quicklime. But in the real world your limestone will contain impurities and your calciner or kiln will not be 100% efficient, and your actual result may differ.

Answer 2

Answer:

5.6 gram of quick lime is produced on heating 10gm of marble.

Explanation:

The decomposition of marble (CaCO₃) :-

CaCO₃ $\longrightarrow$    CaO  +  CO₂

On heating the marble or calcium carbonate decomposed into calcium oxide or quicklime and carbon dioxide gas released.

The molecular mass of calcium carbonate or marble = 100g/mol

Given, the mass of the marble = 10g

The number of moles of marble = 10/100 = 0.1 mole

One mole of marble produces quick lime = 1 mole

Then 0.1 mole of marble will produce quick lime = 0.1 mole

The molecular mass of quicklime (CaO) = 56g/mol

The mass of quicklime is produced = 0.1× 56 = 5.6g

Therefore, the mass of quick lime produced on heating 10gm of marble is equal to 5.6g.

To learn more about "Number of moles of calcium carbonate "

https://brainly.in/question/5350845

To learn more about "Thermal decomposition reaction"

https://brainly.in/question/9882168