Which of the following solutions have the more concentration?

Options

A. a) 20g of NaOH in 20mL of solution
B. b) 0.5mol of KCl in 200mL of solution
C. c) 40g of NaOH in 100mL of solution
D. d) 20g of KOH in 200mL of solution

Explanation

To determine which of the given solutions has the highest concentration, we will calculate the molarity (concentration) of each solution using the formula:

\[ \text{Molarity (M)} = \frac{\text{Number of moles of solute}}{\text{Volume of solution in liters}} \]

Let's analyze each option step by step.

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