Which is the spectator ion and ion expected to hydrolyze in KAl(SO4)2?



Answer:
KAl(SO4)2 <->K+ + Al3+ + 2SO4(2-)
Al3+ + 4H2O = Al(OH)4- +4 H+
so K+ and SO4(2-) are spectator ions, aluminum(III) is the one that hydrolyzes

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