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

C2H2 + 2H2 Right arrow. C2H6

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

3.445 mol

6.890 mol

27.56 mol

55.12 mol

C

Explanation:

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We need 27.56 moles hydrogen to produce 13.78 mol of ethane. (option 3)

Explanation:

Step 1: Data given

Moles ethane produced = 13.78 moles

Step 2: The balanced equation

C2H2 + 2H2 → C2H6

Step 3: Calculate moles of hydrogen

For 1 mol acetylene (C2H2) we need 2 moles hydrogen (H2) to produce 1 mol of ethane (C2H6)

For 13.78 moles ethane produced we need 2*13.78 = 27.56 moles hydrogen (H2)

We need 27.56 moles hydrogen to produce 13.78 mol of ethane. (option 3)