How do you find the mass of calcium in 215 g of calcium nitrate.

Question

This is part of the mole as percent composition.

Answer 1

The molar mass of Calcium Nitrate is 164 g / mol

Calcium's is 40.1 g / mol

(40.1 g / mol) / (164 g / mol) * (100 %) = 24.5%

24.5% of the mass of Calcium Nitrate is made up of Calcium.

24.5% * 215 g = 52.6 g