Determination of the water of hydration in a compound?

0 ⤊

Determination of the water of hydration in a compound?

CuSO4 x 5H2O

=36.1%

How do I find the percet of water of hydration for:
CoCl2 x 6H2O
Na2CrO4 x 10H2O
MgSO4 x 7H2O

If you can please do it step by step. Thanks!

2007-02-08 10:15:20 · 2 answers · asked by Heat 3 in Science & Mathematics ➔ Chemistry

2 answers

% = (mass of total H20 in compound/Total mass of compound) x 100%

2007-02-08 10:19:49 · answer #1 · answered by Mr Hex Vision 7 · 0⤊ 0⤋

All you need to do is determine the molecular weight of each compound. You need a periodic table for this, which I don't have. But I know water's m.w. is 18. So find the total weight of the base molecule plus the weight of the quantity of water attached to it, the divide the weight of the water by the total weight.

2007-02-08 10:21:13 · answer #2 · answered by Matthew P 4 · 0⤊ 0⤋