A solution contains one or more of the following ions: Ag , Ca2 , and Co2 . Lithium bromide is added to the solution and no precipitate forms. An excess of lithium sulfate is then added to the solution and a precipitate forms. The precipitate is filtered off and lithium phosphate is added to the remaining solution, producing a precipitate. Which ions are present in the original solution

Explanation:

Given:

A solution contains one or more of the following ions such as Ag, and

Here the Lithium bromide is added to the solution and no precipitate forms

Solution:

Since with LiBr no precipitation takes place therefore Ag+ is absent

Here on adding to it precipitation takes place.

Precipitate is as follows,

Thus,

is present

When is added again precipitation takes place.

Therefore the reaction is as follows,

Therefore,

are present in the solution

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