Answer:
0.5 M has the weakest concentration.
Explanation:
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In this case, according to the given information, it turns out possible for us to remember that the concentration, or molarity, of a solution is given in terms of moles per liters of solution.
In such a way, we can infer that the solution with the weakest concentration is the one with the smallest molarity, that is 0.5 M.
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