The hydrocarbon composition is 85.7% carbon and 14.3% hydrogen. Establish a formula
| June 25, 2021 | education
The hydrocarbon composition is 85.7% carbon and 14.3% hydrogen. Establish a formula if the vapor density in air is 0.97.
C: H = 85.7 / 12: 14.3 / 1 = 7.14: 14.3 = 1: 2
M = 0.97×29 = 28
According to the elementary formula of saturated hydrocarbons of alkanes СH2 with a molar mass of 14. It is known that this molar mass is equal to 28. Let us find the hydrocarbon:
n = 28/14 = 2
Answer: С2H4
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