What volume, in liters, of SO2 is formed when 123 L of H2S(g) is burned?
2H2S + 3O2 -----------> 2SO2 + 2H2O
2 moles of H2S is burned to gives 2 moles of SO2
2*22.4L of H2S is burned to gives 2*22.4L of SO2
123L of H2S is burned to gives = 2*22.4*123/2*22.4 = 123L of SO2 >>>>>answer
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