What is the percentage composition of carbon in Ca(HCO3)2? [ Ca = 40.0, 0= 16.0, C = 12.0, H= 1.0]

A. 22.2%
B. 14.8%
C. 7.4%
D. 3.7%

Correct Answer:

Option B = 14.8%

Explanation

. % of C in Ca(HCO3)2
Molar mass of Ca(HCO3)2 = 40+(1+12+(16*3))2
=40+(13+48)2
=40+122
=162
C/Ca(HCO3)2 x 100
=12 * 2/162 * 100
=14.8%