The reaction of ethane gas (C2H6) with chlorine gas produces C2H5Cl as its main

Question

The reaction of ethane gas (C2H6) with chlorine gas produces C2H5Cl as its main product along with HCl. Calculate the percent yiled of C2H5Cl if the reaction of 300.0 g of ethane with 650.0 g of chlorine produced 490.0 g of C2H5Cl. A. 82.8% B. 100% C. 26.4% D. Impossible to determine from this data.

Explanation / Answer

C2H6+Cl2-->C2H5Cl+HCl; Number of moles of C2H6=300/30=10 Number of moles of Cl2=650/71=9.15 so ethane is in excess..So 9.15 moles of ethane reacts; amount of C2H5Cl that should be produced=9.15 moles(9.15*64.5 gm=590.17 gm); so efficiency=(490/590.17)*100=83 % answer(A)

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