What would be the steps to solving this problem?
The aluminum sulfate hydrate [Al2(SO4)3 (times) xH2O] contains 8.20 % Al by mass. Calculate x, that is , the number of water molecules associated with each Al2(SO4)3 unit.
RMM for Al2(SO4)3
RMM for H2O
Number of water molecules = n
Solve for n to get 18 (to 2 signinficant digits).
Thank You so much!
I have some other questions that I don't understand.