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What is relation between molarity and molality and normality?

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"Normality" refers to the activity of a reagent: gram equivelant dissolve in a liter?

"Molarity" refers the numbers of moles of the solute present per litre of the solution.

"Molality" refers the numbers of moles of solute present in 1000 grams of the solvent.

Thus, for hydrochloric acid (HCl) and sodium hydroxide (NaOH) the normality is equal to the molarity. But for dibasic substances like sulfuric acid (H₂SO₄) or barium hydroxide Ba(OH)₂, the normality is twice the molarity. For a tribasic substance, normality would be three times the molarity and so forth.

First answer by Rnp 279. Last edit by Mohd. Shakil Zai. Contributor trust: 1 [recommend contributor ]. Question popularity: 21 [recommend question].

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