composition of solid mixture from amount of gas evolved chem question
1. A sample contained a mixture of CoS and CdS. The amount of CoS was determined by reacting 7.029 g of the sample with an excess of HCl to release H2S from each compound; CoS(s) + 2 HCl(aq) → CoCl 2 + H 2S(g) CdS(s) + 2 HCl(aq) → CdCl 2 + H 2S(g) If […]
