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Some Basic Concepts in Chemistry : Molarity and Molality by Alakh Pandey


Some Basic Concepts in Chemistry : Molarity and Molality

Introduction

Molarity and Molality are two fundamental concepts in Chemistry which act as a nightmare for most of the students of Class 11 and Class 12. Follow the video attached to learn and master the concepts thoroughly.

Concepts Summary

Molarity :  It is a concentration unit, defined as the number of moles of solute divided by the number of litres of solution.

Molarity is expressed in units of moles per liter (mol/L). It’s such a common unit, it has its own symbol, which is a capital letter M. A solution that has the concentration 5 mol/L would be called a 5 M solution or said to have a concentration value of 5 molar. [source : https://www.thoughtco.com/molarity-definition-in-chemistry-606376 ]

Molality : It is a unit of concentration, defined as the number of moles of solute divided by the number of kilograms of solvent. Molality is abbreviated as molal. [source : https://www.thoughtco.com/molality-definition-in-chemistry-606375 ]

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Published on September 29th, 2019 | by Abhishek Mandal


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