How much water should be added to of to make it ? — Mole Concept and Some Basic Concepts of Chemistry Chemistry Question
Question
How much water should be added to $200 \text{ mL}$ of $2 \text{ M } HCl$ to make it $0.5 \text{ M}$?
Answer: B
💡 Solution & Explanation
$M_1V_1 = M_2V_2 \Rightarrow 2 \times 200 = 0.5 \times V_2 \Rightarrow V_2 = 800 \text{ mL}$. <br>$\text{Water to be added} = 800 - 200 = 600 \text{ mL}$.
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