. A 1.000 g sample of a mixture of CH4 and C2H6 is
Chapter 4, Problem 145(choose chapter or problem)
. A 1.000 g sample of a mixture of CH4 and C2H6 is analyzed by burning it completely in O2, yielding 2.776 g CO2. What is the percentage by mass of CH4 in the mixture? (a) 93%; (b) 82%; (c) 67% ; (d) 36%; (e) less than 36%.
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