Answer:
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)
27.56 moles of hydrogen is required to produce 13.78 mol of ethane.
We can see that this reaction involves the hydrogenation of ethene to give ethane. Here an alkene is converted to an alkane by addition of hydrogen across the double bond.
The equation of the reaction is;
C2H2 + 2H2 ------> C2H6
From the balanced reaction equation;
2 moles of hydrogen is required to make 1 mole of ethane
x moles of hydrogen is required to produce 13.78 mol of ethane
x = 2 moles × 13.78 mol/1 mole
x = 27.56 moles
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