Question

Посчитать молекулярную массу Mr; Cl2O, Cl2O7 , Cu(NO3)2, KCIO3, Fe2O3

Answer 1

Ответ:

Объяснение:

Mr(Cl2O)=35,5*2+16=87

Mr(Cl2O7)=35,5*2+16*7=183

Mr(Cu(NO3)2)=64+(14+16*3)*2=188

Mr(KClO3)=39+35,5+16*3=122,5

Mr(Fe2O3)=56*2+16*3=160

Answer 2

Cl2O: Molar mass of Cl = 35.5 g/mol Molar mass of O = 16.0 g/mol Molar mass of Cl2O = 2*35.5 + 16.0 = 87.0 g/mol

Cl2O7: Molar mass of Cl = 35.5 g/mol Molar mass of O = 16.0 g/mol Molar mass of Cl2O7 = 2*35.5 + 7*16.0 = 182.0 g/mol

Cu(NO3)2: Molar mass of Cu = 63.5 g/mol Molar mass of N = 14.0 g/mol Molar mass of O = 16.0 g/mol Molar mass of Cu(NO3)2 = 63.5 + 2*14.0 + 6