Multiple choice

Find the volume of water required to dilute 3 L of 5 M solution to make 1 M solution?

  1. 12 L

  2. 10 L

  3. 20 L

  4. 5 L
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A Correct answer
Explanation

Using the dilution formula M1V1 = M2V2, we have 5 * 3 = 1 * V2, so V2 = 15 L. The volume of water to be added is 15 - 3 = 12 L.

AI explanation

Using the dilution formula M1 multiplied by V1 equals M2 multiplied by V2, you substitute the given values as 5 multiplied by 3 equals 1 multiplied by V2. Solving for V2 gives a final volume of 15 liters. Because the original solution occupied 3 liters, you subtract this from the total to find that 12 liters of water must be added.

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