Guide :High School

The most concentrated solution from among those listed is: A. 150 mL 0.18M NaOH. B. 75 mL 0.23M KNO3. C. 200 mL 0.15M NaNO3. D. 100 mL 0.25M KCl.

The most concentrated solution from among those listed is: A. 150 mL 0.18M NaOH. B. 75 mL 0.23M KNO3. C. 200 mL 0.15M NaNO3. D. 100 mL 0.25M KCl.
The most concentrated solution is the one with the highest molarity. Molarity is calculated by taking the moles of solute/ liters of solution.The already gave you the molarity, so you do not need to calculate it. The most concentrated solution is the 0.25 M KCl. Keep in mind that the volume they gave you does not effect the molarity of the solution. It just tells us that they have 100 mL of a 0.25 M KCl solution. The 100 mL solution has a molarity of 0.25.Your correct answer would be D) 100 mL 0.25 M KCl. ...

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