of a solution is diluted to . What is the new molarity (in M)?

Answer and explanation

Correct answer: A. 6/25

  1. Step 1: For a solution dilution, the total amount of solute remains constant: , where is molarity and is volume.
  2. Step 2: Solve for the final molar concentration: .
  3. Step 3: Substitute the given values , , and : .
Answer
6/25.
Why not the others: 6 assumes no dilution occurred; 3 assumes a twofold dilution factor; 150 multiplies volume by 15.

Practise more Solutions.

Free questions with an explanation for every one, and full timed JEE Advanced mock tests.