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Posted by on Thursday, September 22, 2011 at 7:46pm.

A mixture of carbon and sulphur has a mass of 9.0 g. Complete combustion with excess oxygen gives 22.6 g of a mixture of carbon dioxide and sulphur dioxide. Find the mass of sulphur in the original mixture

  • chemistry - , Thursday, September 22, 2011 at 11:39pm

    Let x = mass C
    and y = mass S
    Two unknowns require two equations and solve them simultaneously.
    x + y = 9.0
    x(molar mass CO2/atomic mass C) + y(molar mass SO2/atomic mass S) = 22.6
    Solve for y.
    Post your work if you get stuck.

  • chemistry - , Sunday, September 13, 2015 at 1:39pm


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