Calculate the mass fraction of carbon in pentane and pentene.
| December 10, 2020 | education
pentane C5H12
M = 12 * 5 + 12 = 72 g / mol
mass fraction of carbon = 12 * 5/72 = 0.83 or 83%
pentene C5H10
M = 12 * 5 + 10 = 70
mass fraction = 12 * 5/70 = 0.86 or 86%
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