Question

modelati formarea moleculei de H2S. Calculati masa de H2S care contine 48,176X10^23 electroni pusi in comun. Se dau masele atomice : H=1 ; S=32

Answer 1

1 mol H2S = 2+32 = 34 g/mol

34 g/mol........... 2x6,022x10^23 e-

a g........................ 48,176X10^23 e-

=> a = 34x48,176X10^23 / 2x6,022x10^23 = 136 g H2S