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What is the mass per cent of carbon in CO2 (C = 12.01, molar mass 44.01 g/mol)?
A72.71%
B12.00%
C27.29%
D33.33%
Answer & Solution
Correct answer: C. 27.29%
Carbon's share is 12.01 / 44.01 x 100, which is about 27.29%.
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