Question

A student carried out this reaction with methane as the limiting reagent. A 12.0 g quantity of methane was used, and the student collected 22.0 g of carbon dioxide. What was the percent yield?

Answer 1

The percent yield is 66.7%

Step-by-step explanation:

1. The balanced chemical reaction to obtain carbon dioxide from the methane is:

`CH_(4)+2O_(2)=CO_(2)+2H_(2)O`

2. Calculathe the theoretical quantity of carbon dioxide.

As the problem says that the limiting reagent is the methane, all the calculations will be made from this quantity:

`12.0gCH_(4)*(1molCH_(4))/(16gCH_(4))*(1molCO_(2))/(1molCH_(4))*(44gCO_(2))/(1molCO_(2))=33gCO_(2)`

3. Calculate the percent yield:

Percent yield =
`(actualyield)/(theoreticalyield)*100`

Percent yield =
`(22.0g)/(33.0g)*100`

Percent yield = 66.7%