Explain a sample contained a mixture of cds and zns

Reference no: EM13294063

A sample contained a mixture of CdS and ZnS. The amount of CdS was determined by reacting 5.903 g of the sample with an excess of HCl to release H2S from each compound;
CdS(s) + 2 HCl(aq) ® CdCl2 + H2S(g)
ZnS(s) + 2 HCl(aq) ® ZnCl2 + H2S(g)

If the sample reacted completely and produced 1220 mL of hydrogen sulfide at 33.53 °C and 745.7 mm Hg, what was the mass percentage of CdS in the mixture?

Reference no: EM13294063

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