answer step1, step 2, and step 3 please

A natural gas with the molar analysis 78% CH4, 13%C2H6,6%C3H3, 1.7% C4H10, 1.3% N2 burns completely with 40% excess air in a reactor operating at steady state. The molar flow rate of the fuel is 2.5 kmol/h and air is 21% O2 and 79% N2 on a molar basis. Step 1 Your answer is incorrect Determine the molar flow rate of the air, in kmol/h. hair kmol/h Hint Save for Later Attempts: 1 of 3 used Submit Answer Step 2 The parts of this question must be completed in order. This part will be available when you complete the part above. Step 3 The parts of this question must be completed in order. This part will be available when you complete the part above