Question

What quantity of limestone on heating will give 56 kg of ca o?

Answer 1

Answer:

Limestone (Chemical formula: CaCO3), upon heating, produces lime or calcium oxide (chemical formula: CaO) and carbon dioxide. The reaction can be represented by the following chemical equation:

CaCO_3 (s) + heat -> CaO (s) + CO_2 (g)

Here, 1 mole of limestone produces 1 mole of carbon dioxide and 1 mole of lime or calcium oxide.  

The molar mass of limestone is 100 g (= mass of Ca + mass of C + 3 x mass of O = 40 + 12 + 3 x 16). Similarly, the molar mass of lime is 56 g.

Thus, we can also say that 100 g of limestone produces 56 g of lime.

Or, 1 g of lime is produced by 100/56 g limestone.

Thus, 56 kg of lime will be produced by 100/56 x 56 kg = 100 kg.

So, in order to obtain 56 kg of lime, we need to heat 100 kg of limestone.

Explanation:

Answer 2

Answer:

100 KG.

Explanation:

◇◇◇◇We can also say that 100gm of limestone 56gm of lime ,or 1gm of lime is produced by 100/56 g of limestone.

◇◇Thus, 56KG of limestone will be produced by

100/56×56 kg =100 kg.

♡so ,in order to obtain 56kg of lime we need to heat 100kg of limestone....

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