Question

Given the following equation:2 C4H10 + 13 O2 = 8 CO2 + 10 H2O ; what is the mole to mole ratio of C4H10 to O2? Mole to mole ratio of O2 to CO2?

Answer 1

2mol C4H10 : 13mol O2

13mol O2 : 8mol CO2

Explanations;

Given the combustion of butane reaction expressed as:

`2C_4H_(10)+13O_2\rightarrow8CO_2+10H_2O`

In order to get the mole ratio, we will use the coefficient of the compound in the equation.

For the mole to mole ratio of C4H10 to O2

Coefficient of C4H10 in the equation is 2 while the coefficient of O2 in the equation is 13. Hence the mole ratio of C4H10 to O2 is 2mol C4H10 : 13mol O2

For the mole to mole ratio of O2 to CO2

Coefficient of CO2 in the equation is 8 while the coefficient of O2 in the equation is 13. Hence the mole ratio of O2 to CO2 is 13mol O2 : 8mol CO2