What is the mass % of carbon in dimethylsulfoxide (C₂H₆SO)rounded to three significant figures?

Name: What is the mass % of carbon in dimethylsulfoxide (C 2 H 6 SO)rounded to three significant figures?
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Quizplus · Accepted Answer

The molar mass of dimethylsulfoxide is 78.13 g/mol. The molar mass of carbon is 12.01 g/mol. There are two carbon atoms in each molecule of dimethylsulfoxide. Therefore, the mass % of carbon in dimethylsulfoxide is (2 * 12.01 g/mol) / 78.13 g/mol * 100% = 30.7%.

What Is the Mass % of Carbon in Dimethylsulfoxide (C2H6SO)rounded

What Is the Mass % of Carbon in Dimethylsulfoxide (C₂H₆SO)rounded