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OpenStudy (anonymous):

What is the percent composition of hydrogen in benzene?

OpenStudy (welshfella):

the formula for benzene is C6H6 relative atomic mass of C = 12 and of hydrogen its 1.008 so % H = 6* 1.008 * 100 ---------------- (6*1.008+ 6 * 12)

OpenStudy (welshfella):

= 604.8 / 78.048

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