Question

Strontium sulfate becomes less soluble in an aqueous solution when sodium sulfator is added because

O the addition of sulfate ions shifts equilibrium to the left.
O the addition of sodium ions shifts equilibrium to the left.
O the addition of sulfate ions shifts equilibrium to the right. Chd
O the addition of sodium ions shifts equilibrium to the right.​

Answer 1

A. The addition of sulfate ions shifts equilibrium to the left.

Step-by-step explanation:

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Answer 2

The addition of sulfate ions shifts equilibrium to the left.

Step-by-step explanation:

Hello!

In this case, according to the following ionization of strontium sulfate:

`SrSO_3(s)\rightleftharpoons Sr^(2+)+SO_4^(2-)`

It is evidenced that when sodium sulfate is added, sulfate,
`SO_4^(2+)` is actually added in to the solution, which causes the equilibrium to shift leftwards according to the Le Ch athelier's principle. Thus, the answer in this case would be:

The addition of sulfate ions shifts equilibrium to the left.

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