Question

Define Molarity and Molality .​

Answer 1

Answer:

•Molality (m), or molal concentration, is the amount of a substance dissolved in a certain mass of solvent. It is defined as the moles of a solute per kilograms of a solvent. The units of molality are m or mol/kg.

Molality equation:

m = moles solute / kilograms solvent

•Molarity (M) is the amount of a substance in a certain volume of solution. Molarity is defined as the moles of a solute per liters of a solution. Molarity is also known as the molar concentration of a solution.The units of molarity are M or mol/L. A 1 M solution is said to be “one molar.”

Molarity equation:

M = moles solute / liters solution.

Answer 2

Answer:

Molality is a measure of number of moles of solute present in 1 kg of solvent. This contrasts with the definition of molarity which is based on a specified volume of solution. A commonly used unit for molality in chemistry is mol/kg. A solution of concentration 1 mol/kg is also sometimes denoted as 1 molal.

Answer by MissMiracle12❤️