The volume of water to be added to 100 mL of 0.5 M to make it 0.1 M is: — Mole Concept and Some Basic Concepts of Chemistry Chemistry Question

💡 Solution & Explanation

Dilution formula: $M_1V_1 = M_2V_2 \Rightarrow 0.5 \times 100 = 0.1 \times V_2 \Rightarrow V_2 = 500 \text{ mL}$. <br>$\text{Volume to be added} = 500 - 100 = 400 \text{ mL}$.