1. In 50grm AL2 (SO4) 3 are 24gr weight of oxygen. Determine how much% purity AL2 (SO4) 3 is?
2. To establish the levels of (NH4) 2 SO4 in ZA, ZA taken 2,5grm then dissolved in water to 200ml. taken 40ml of this solution is then reacted with KOH solution auspicious number while heated, if NH3 gas that can happen right reacted with 25ml of 0.2 M HCl solution. Determine% level (NH4) 2 SO4 in fertilizers, in a matter of two reactions occur:
I) (NH4) 2 SO4 + KOH - K2SO4 + NH3 + H2O
II) NH3 + HCl - NH4Cl

Question

1. In 50grm AL2 (SO4) 3 are 24gr weight of oxygen. Determine how much% purity AL2 (SO4) 3 is?
2. To establish the levels of (NH4) 2 SO4 in ZA, ZA taken 2,5grm then dissolved in water to 200ml. taken 40ml of this solution is then reacted with KOH solution auspicious number while heated, if NH3 gas that can happen right reacted with 25ml of 0.2 M HCl solution. Determine% level (NH4) 2 SO4 in fertilizers, in a matter of two reactions occur:
I) (NH4) 2 SO4 + KOH -> K2SO4 + NH3 + H2O
II) NH3 + HCl -> NH4Cl