The molecular formula of aluminium sulphate i | vedclass

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Question

(C) To determine the molecular formula of aluminium sulphate,we look at the valencies of the constituent ions:$1$. Aluminium $(Al)$ has a valency of $

Vedclass · Accepted Answer

$Al_{2}(SO_{4})_{3}$

Vedclass · Answer

(C) To determine the molecular formula of aluminium sulphate,we look at the valencies of the constituent ions:$1$. Aluminium $(Al)$ has a valency of $+3$.$2$. The sulphate ion $(SO_{4})$ has a valency of $-2$.$3$. To form a neutral compound,the total positive charge must equal the total negative charge.$4$. By crossing the valencies,we get $Al_{2}(SO_{4})_{3}$.Thus,the correct formula is $Al_{2}(SO_{4})_{3}$.

The molecular formula of aluminium sulphate is

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