Question: 3.175g of crystals heated until no furtherloss in mass. Anhydrous salt had a mass of 2.086g. How many moles of zincsulphate are there in 2.086g of anhydrous zinc sulphate ?
This is my working: 3.175 - 2.086 = 1.089
Moles = Mass/Mr
1.089g/161.47g/mol-1 = 0.01 mol
Is this correct ?
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Last edited by M.Abubaker; 12-09-2015 at 18:48.
- 12-09-2015 18:27