A 1.912-g sample of calcium chloride is decomposed into its constituent elements and found to contain...

A 1.912-g sample of calcium chloride is decomposed into its constituent elements and found to contain 0.690 g Ca and 1.222 g Cl. Calculate the mass percent composition of Ca and Cl in calcium chloride.

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Expert Solution

mass of Ca = 0.68 g

mass of Cl=1.222 g

total mass = 1.912 g

mass percent of Ca = mass of Ca*100 / total mass

= 0.69*100/1.912

=36.09 %

mass percent of Cl =100 - mass percent of Ca

= 100 - 36.09

=63.91 %

queen_honey_blossom answered 8 months ago

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