If I was given a compound CuCl2 bH2O, I need to find b. By evaporating the H2O I found the mass of H2O but now I need to find b? What calculations do I do to find this?
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In CuCl2 bH2O b is the number of moles of H2O
Let initial mass of the salt is Z g
mass of water = w g
From CuCl2 bH2O
18b g water is associated with 134 g of CuCl2
Therefore w g water will be associated with 134xw/18b g
And 134xw/18b = (Z - w) g of CuCl2
Thus b = 134xw/18(Z - w)
Here w is known, Z is also, so the value of b can be calculated. the rounded integer will be the value of b.
Let initial mass of the salt is Z g
mass of water = w g
From CuCl2 bH2O
18b g water is associated with 134 g of CuCl2
Therefore w g water will be associated with 134xw/18b g
And 134xw/18b = (Z - w) g of CuCl2
Thus b = 134xw/18(Z - w)
Here w is known, Z is also, so the value of b can be calculated. the rounded integer will be the value of b.