Molarity to Grams Calculator


Free online molarity to grams calculator – Simply enter molarity, volume and molar mass then click the calculate button.

Molarity to Grams Formula

The formula to convert molarity to grams is:

G = M * V * M.wt

  • G = Grams
  • M = Molarity (mol/L)
  • V = Volume of the solution
  • M.wt = Molecular Weight (molar mass) of the substance

How to Convert Molarity to Grams?

To convert from molarity (moles per liter) to grams, you need to know the molar mass of the substance and the volume of the solution.

Here’s a step-by-step process of M to grams:

  1. Determine the molarity (M)
  2. Determine the volume of solution
  3. Determine the molecular mass with the help of the periodic table
  4. Put all values into the above formula

Solved Example

Example – A 1 M (molar) solution of sodium chloride (NaCl) and you have 0.5 liters of the solution then calculate the mass in grams of NaCl solution.

Solved –

Given, Molarity = 1 M, Volume of solution = 0.5 liter

The molar mass of NaCl = 58.44 g/mol

Grams = 1 * 0.5 * 58.44 = 29.22 g

29.22 grams of sodium chloride

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