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Didn't the question just ask for the percentage of purity with no numbers or am I remembering wrong? Plus the mass was 0.616, the volume in mL was 50.00 and the concentraion was 1.000 mol/L

For the purity question i left the answer as 79.73%, because i used the number of moles to about 9 digits. Do you reckon i'll get 4 or will the infamous BOS markers take a mark off?

Awesome! That was exactly what I was looking for. Thanks heaps.

So I have the Leading Edge "Australia in the Global Economy - HSC Economics" workbook (sixth edition), its a quite common as far as I know. ( I have attached an image of the book's cover) But, my problem is... It has NO ANSWERS! :newburn: The answers are supposed to be available for...