Question

Prepare 1500 ml of 5.0 M H2SO4 from a stock H2SO4 which is 80% pure and a s.g of 1.018.

Answer 1

I think you start out by doing 5M/1.5L and multiply by 98.079g/mol (the mw of H2S04)

Answer 2

5M means 5 moles per liter so for 1 1/2 L you need 7.5 moles H2S04 in 1500 mL