How many moles of hydrogen are needed to produce 13.78 mol of ethane?

This is an incomplete question, here is a complete question.

The following balanced equation shows the formation of ethane (C₂H₆).

How many moles of hydrogen are needed to produce 13.78 mol of ethane?

1) 3.445 mol

2) 6.890 mol

3) 27.56 mol

4) 55.12 mol

Answer : The number of moles of hydrogen needed are, (3) 27.56 mol

Explanation : Given,

Moles of ethane = 13.78 mol

The given balanced chemical reaction is:

From the balanced chemical reaction we conclude that,

As, 1 mole of ethane produced from 2 moles of hydrogen

So, 13.78 mole of ethane produced from moles of hydrogen

Thus, the number of moles of hydrogen needed are, 27.56 mol

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