Chemistry • Chemistry Topics

Solutions & Concentrations (Molarity, Dilution)

Master Solutions & Concentrations (Molarity, Dilution) concepts with free HESI A2 practice questions and detailed rationales. These questions will help you reinforce your understanding and improve your score on the HESI A2 exam.

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This Solutions & Concentrations (Molarity, Dilution) page is part of the Chemistrysection under Chemistry Topics. Use the free questions below to check your understanding, read the rationale after each answer, and then move into a full HESI A2 question bank session.

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Free Practice Questions (2)

Question 1medium

How to Calculate Molarity of NaOH Solution | HESI A2 Chemistry Practice Question

What is the molarity of a solution prepared by dissolving 20.0 grams of NaOH (molar mass = 40 g/mol) in 500 mL of solution?

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Question 2hard

How to Calculate Molarity of NaCl Solution | HESI A2 Chemistry Practice

A lab technician prepares a solution by dissolving 15.0 g of NaCl (molar mass = 58.44 g/mol) in enough water to make 500 mL of solution. Calculate the molarity of this solution.