what is percent water in Hydrated Calcium chloride (CaCl2.H2o)
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what is the percent by mass of water in CaCl2 . 2H2O ?
the compound is a hydrate, the 2 after Cl and after H in water are in subscrip
First you nedd to calculate the total mass in a.m.u
Ca = 40, Cl = 35, H = 1, O = 16.
40+(2x35)+(2x((2x1)+16))=146
the mass of water is:
2x((1x2)+16)=36
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ca = 40
cal =35.5
cacl2.2h2o= 147
2h2o= 36
36/147= 0.245%
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