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What is the mass percentage of C in C2H2O2?
Provide an answer to two decimal places.

User Gauteh
by
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1 Answer

11 votes

Molar mass:


12 * 2 + 2 * 2 + 16 * 2


= 24 + 2 + 32


= 58 \: gram \: per \: mole

Carbon Contribution by mass:


58 = 100\% \\ 24 = x\%


x = (24 * 100)/(58) = 41.38\%

User Honesta
by
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