Question

Calculate the mass percent composition for each of the following compounds:

a) 4.00 g of Ca and 3.55 g of F

b) 0.390 g of Na and 0.300 g of O

c) 12.1 g of K, 17.8 g of Mn, and 21.0 g of O

Answer 1

To calculate mass percent composition use following formula

Mass percent = mass of indivisual component ×100 / mass of total compound

Calculations are given in following image