The amount of calcium oxide produced on heating 150 kg limestone (75% pure) is kg. (Nearest integer)

Given: Molar mass (in g mol) of Ca = 40, O = 16, C = 12.

Question

The amount of calcium oxide produced on heating 150 kg limestone (75% pure) is  kg. (Nearest integer)

Given: Molar mass (in g mol) of Ca = 40, O = 16, C = 12.

Canvas Classes · Accepted Answer

Strategy:
 Calculate the yield of Calcium Oxide from the decomposition of pure Calcium Carbonate ( molar ratio). First, determine the actual mass of pure  in the limestone sample based on its purity.

Step 1: Find mass of pure reactant
 Limestone mass , Purity .

Step 2: Relate to Calcium Oxide
Reaction: 
Molar mass of .
Molar mass of .

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