Chemistry, asked by RakshaDeeku1369, 10 months ago

Find the % mass of ca in 10 g of pure caco3

Answers

Answered by sankarinava30

5

The Molar mass of CaCO3 is 100g.

So in 100g CacO3 it contains 40g of calcium

so by unitary method in 10 g it will contain 4gm Calcium

In 100g CaCO3 there are 3 gram-atoms of oxyegen

So again by unitary method in 10 gm CaCO3 it will contain (3/100) X 10 i.e. 0.3 g oxygen atom and hence check other

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