only need the second part, thank you!

A gas contains 55.0 wt\% methane, 5.00 wt ethane, 35.0 wt % ethylene, and the balance water. Composition Correct. Calculate the molar composition of this gas on both a wet and a dry basis and the ratio (mol H2O/mol dry gas): Component Mole\% (Wet basis) Mole \%(Dry basis) Methane Ethane Ethylene Water If 100.0kg/h of this fuel is to be burned with 30.0% excess air, what is the required air feed rate? kmol/h What is the required feed rate if the combustion is only 75.0% complete? kmol/h