Please Find the questions, thanx.

1) To prepare 100 ml of 2N H-80 from a stock HSO known to have specific gravity=1.633 12 mi 60ml 18ml 13nil 2)To prepare 250ml of 0.02 M of NaOH, the weight of pure NaOH required is 500mg 1000mg 1500mg 200mg 3)Temperature needed for VSS determination is 103C 180 800 C 350C