Which of the following solutions have the same concentration?

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Chemistry | Class 11 | Exercise 1 | NCERT | Some Basic Concepts of Chemistry

Which of the following solutions have the same concentration?

(i) 20 g of NaOH in 200 mL of solution

(ii) 0.5 mol of KCl in 200 mL of solution

(iii) 40 g of NaOH in 100 mL of solution

(iv) 20 g of KOH in 200 mL of solution

Answer:

Correct Answers: (i) 20 g of NaOH in 200 mL of solution; (ii) 0.5 mol of KCl in 200 mL of solution

Explanation: According to the molarity of a substance which is defined as the number of moles per volume of the solution in litres, the solutions containing 20g of NaOH and 0.5 mol of KCl have the same concentration.

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