Lessons

Eamcet Chemistry
1st Year : Unit 1.4 (Basics & Concepts) - Stoichiometric Calculations

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Q.

Sodium carbonate of 92% purity is used in the reation Na2CO3 + CaCl2 → CaCO3 + 2NaCl. The number of grams of Na2 CO3 required to yield 1gm of CaCO3

View Answer

Correct choice: D

Explanation:

100gm of CaCO3 given by 106 gm of Na2 CO3
1gmof CaCO3 given by (106/100)=1.06gm of Na2 CO3
Wt of 92% Na2 CO3 required =(1.06 X100/92)=1.152gm.
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