Oblicz zawartość procentową (% masowy) wody w hydratach:
a). CoCl₂ * H₂O
b). CaSo₄ * 2 H₂O
a). CoCl₂ * H₂O
b). CaSo₄ * 2 H₂O
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MCoCl₂ * H₂O=148g/mol
148g - 100%
18g - x
x=18gx100%/148g=12.16%
b). CaSo₄ * 2 H₂O
MCaSo₄ * 2 H₂O=172g/mol
172g - 100%
36g - x
x=36gx100%/172g=20.93%