why must we used sulfuric acid H2SO4, in 2KAl(OH)4 + H2SO4-2Al(OH)3(s)+K2SO4 +2H2O and 2Al(OH)(s)+3H2SO4-Al2(SO4)3+6H2O rather than hydrochloric acid,HCl,or nitric acid, HNO3?

Question

why must we used sulfuric acid H2SO4, in 2KAl(OH)4 + H2SO4->2Al(OH)3(s)+K2SO4 +2H2O and 2Al(OH)(s)+3H2SO4->Al2(SO4)3+6H2O rather than hydrochloric acid,HCl,or nitric acid, HNO3?

DrBob222 · Answer

Your question is a little confusing because of lack of information. If you are trying to make Al2(SO4)3 you must use H2SO4. HCl would produce the chloride and HNO3 would produce he nitrate.