The percentage by mass of calcium in Ca(OCI)2 is [Ca = 40...
The percentage by mass of calcium in Ca(OCI)2 is [Ca = 40.0; CI = 35.5; O = 16.0]
28.0%
31.6%
43.8%
44.5%
Correct answer is A
Molar mass of Ca(OCl)2 = 40 + (16 + 35.5)x2 = 143
% by mass of calcium in the compound =massofcalcuimmolarmassofcompound x 100%
% calcium = 40143×100
= 27.98% = 28%
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