Question

express relation b/w molarity & molality?​

Answer 1

Answer:

Molarity=(no of moles of solute)/(volume of solution in litrs)

while molality=(moles of solute)/(wt of solvent in kg)

the above two have a relationship as-

molality= Molarity/(density of solution-Molarity*molecular wt of solute)

m = M / (ρ - M x mw A)

apply this relation to solve numericals when density of solution is given...

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Answer 2

Molarity(M) =n/Volume of solution

Molality (m) =n/Weight of solvent

M * Volume of solution= m * Weight of solvent

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