M(NaH) = 23 + 1 = 24
w(Na) = 23/24 = 96%
w(H) = 1/24 = 4%
M(Fe2O3) = 56 * 2 + 16 * 3 = 112 + 48 = 160
w(Fe) = 112/160 = 70%
w(O) = 48/160 = 30%
M(Ca(NO3)2) = 40 + 14 * 2 + 16 * 6 = 40 + 28 + 96 = 164
w(Ca) = 40/164 = 24%
w(N) = 28/164 = 17%
w(O ) =96/164 = 59%
Объяснение:
Надеюсь,Cat - это Ca (кальций)?
M(NaH) = 23 + 1 = 24
w(Na) = 23/24 = 96%
w(H) = 1/24 = 4%
M(Fe2O3) = 56 * 2 + 16 * 3 = 112 + 48 = 160
w(Fe) = 112/160 = 70%
w(O) = 48/160 = 30%
M(Ca(NO3)2) = 40 + 14 * 2 + 16 * 6 = 40 + 28 + 96 = 164
w(Ca) = 40/164 = 24%
w(N) = 28/164 = 17%
w(O ) =96/164 = 59%
Объяснение:
Надеюсь,Cat - это Ca (кальций)?