A saturated solution of SrSO4 has a [SO42-] of 1.0x10-4M. What is the [Sr2+]?
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?