In: Chemistry
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.
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 %