Calculate the mass percent composition of each element in each compound.

Question

FeCl₃

 

Mass % of Fe, Cl

 

Express your answer using four significant figures

Answer 1

Atomic mass Fe = 55.85g

Atomic mass CL = 35.45 g

3 Cl =106.35 g

molar mass FeCl3 = 162.20

%Fe = 55.85/162.20 (x100%)

%Cl = 106.35/162.20 (x100%)