M(CaCl₂) = 40 + 35,5 · 2 = 111
ω (Са) = 40/111 · 100% = 36%
ω (Cl) = 71/111 · 100% = 64%
M(Ва(NО₃)₂) = 137 + 14 · 2 + 16 · 6 = 261
ω (Ва) = 137/261 · 100% = 52%
ω (N) = 28/261 · 100% = 11%
ω (О) = 96/261 · 100% = 37%
М(Fe₂(SO₄)₃) = 56 · 2 + 32 · 3 + 16 · 12 = 400
ω (Fe) = 112/400 · 100% = 28%
ω (S) = 96/400 · 100% = 24%
ω (О) = 192/400 · 100% = 48%
M(CaCl₂) = 40 + 35,5 · 2 = 111
ω (Са) = 40/111 · 100% = 36%
ω (Cl) = 71/111 · 100% = 64%
M(Ва(NО₃)₂) = 137 + 14 · 2 + 16 · 6 = 261
ω (Ва) = 137/261 · 100% = 52%
ω (N) = 28/261 · 100% = 11%
ω (О) = 96/261 · 100% = 37%
М(Fe₂(SO₄)₃) = 56 · 2 + 32 · 3 + 16 · 12 = 400
ω (Fe) = 112/400 · 100% = 28%
ω (S) = 96/400 · 100% = 24%
ω (О) = 192/400 · 100% = 48%