Answer to Question #300726 in General Chemistry for Zainy

Question

2C5H12OH +15O2 ---> 10CO2 + 12H20

a). How many moles of O2 are needed for the combustion of 1 mole alkanol?

b). How many moles of H2O are formed for each mole of O2 consumed?

c). How many grams of CO2 are produced for each mole of alkanol burned?

d). How many grams of CO2 are produced for each gram of alkanol burned?

Answer 1

The equation for the reaction is;

$2C_5H_{11}OH+15O_2\to 10CO_2+12H_2O$

Mole ratio of Pentanol to Oxygen $=2:15$

Moles of Oxygen=$15\times1mole\over2$ $=7.5 moles O_2$