Problem: A mixture of 56.0 g of S and 1.06×102 g of Cl2 reacts completely to form S2Cl2 and SCl2.Find the mass of S2Cl2 formed.

FREE Expert Solution

Consider using two balanced chemical equations to describe this reaction: 


  • 2S + Cl2 → S2Cl2
  • S + Cl2 → SCl2


Because this mixture of S and Cl2 reacts completely, no molecular S and Cl2 remain when the reaction is complete. Treat the two balanced equations as a system of equations where one equation can be substituted into the other to solve for one of the two unknown quantities.


Let: m1 = mass of S , m2 = mass of Cl2


m=m132.07-m235.45×2(35.45×2+32.07×2)


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Problem Details

A mixture of 56.0 g of S and 1.06×102 g of Cl2 reacts completely to form S2Cl2 and SCl2.

Find the mass of S2Cl2 formed.

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