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%
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