A white powder,consisting of a simple mixture of tartaric acid (C4H6O6) and citric acid(C6H8O7) was analysed to determine the elemental composition.Combustion of a 310.0-mg sample produced 384.0 mg of CO2 and 113.1 mg of H2O
1).Calculate the % carbon,by mass,in the sample
2).Calculate the % hydrogen,by mass,in the sample.
3).Calculate the % oxygen,by mass,in the sample.
4).Calculate the % citric acid,by mass,in the sample
不是翻译