Question

If 5.22 mol...

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Answer 1

If 5.22 mol of ethane (C2H6) undergoes combustion according to the unbalanced equation

C2H6 + O2 --> CO2 + H2O

how much Oxygen is required?

Answer in units of mol

Answer 2

The equation for any combustion reaction is

Hydrocarbon + Oxygen --> Water + CO2 and Energy

Therefore the unbalance equation will be

C2H6 + O2 --> H2O + CO2

Balanced it is

2C2H6 + 7O2 --> 6H2O + 4CO2

so per 2 moles of C2H6 7 MOLES of oxygen are needed.
5.25/2 is 2.625 (ratio)

Multiply 7 by that number 18.375 moles

Answer 3

Thank you very much!