A solution is prepared by dissolving 20 g of in 500 mL of solution. Which of the following is/are co — Mole Concept and Some Basic Concepts of Chemistry Chemistry Question

💡 Solution & Explanation

$\text{Moles of } NaOH = 20/40 = 0.5$ (D is correct). <br>$\text{Molarity} = 0.5 / 0.5 \text{ L} = 1 \text{ M}$ (A is correct). <br>Since n-factor for $NaOH$ is 1, $\text{Normality} = \text{Molarity} = 1 \text{ N}$ (B is correct). <br>$\% w/v = (20/500) \times 100 = 4\%$ (C is also correct).