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


C2H2 + 2H2 mc022-1.jpg 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

Respuesta :

JoshEast
mole ratio of ethane to hydrogen according to equation =  1  :  2
∴ moles of hydrogen =  (moles of ethane)  *  2
                                  =   (13.78 mol)  *  2
                                  =  27.56 mol

Option 3 is the answer
kenmyna

The number of moles of hydrogen needed to produce 13.78 moles of ethane is

27.56 moles

Explanation

write a balanced chemical equation

that is C2H2+2H2→ C2H6

from the equation above 2 moles of H2 reacted to form 1 mole of C2H6(ethane)

therefore the mole ratio between H2 to C2H6 is 2:1 hence the mole of H2 = 2 x 13.78= 27.56 moles

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