How many grams of KCl would have to be dissolved in 60 g H_2O to give 40% by weight of solution?

JEE Main Chemistry question

How many grams of KCl would have to be dissolved in 60 g HO to give 40% by weight of solution?

Answer: (A)

Let = mass of KCl. by weight \dfrac{w}{w+60}$×100=40 ⇒ 0.4(w+60)=w ⇒

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Question ID VK-130580