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## Homework Statement

A saturated solution of SrSO

_{4}has a [SO

_{4}

^{2-}] of 1.0x10

^{-4}M. What is the [Sr

^{2+}]?

A. 3.4x10

^{-3}M

B. 5.8x10

^{-4}M

C. 1.0x10

^{-4}M

D. 3.4x10

^{-7}M

## Homework Equations

## The Attempt at a Solution

It's a multiple choice practice test and the answer key tells me that A is the answer. When I look at the question, the strontium and sulphate have a 1:1 molar ratio so wouldn't the answer be C? Is this a mistake or am I missing something?