Question

2C5H11OH+O2 to give CO2 +H2O. How many moles of O2 are needed for combustion of 1 mole of alkanol

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$=15\times1mole\over2$ $=7.5 moles O_2$