Question

Molarity is defined as

• A. the number of moles of solute dissolved in one $dm^{3}$ of the solution
• B. the number of moles of solute dissolved in $1 \,kg$ of solvent
• C. the number of moles of solute dissolved in $1 \,dm^{3}$ of the solvent
• D. the number of moles of solute dissolved in $100\, ml$ of the solvent

Answer 1

Answer: (A)

We have the definition for molarity as, the number of moles of solute present in one litre of the solution.

$1 L =1 dm ^{3}$

$\therefore $ Molarity $(M) =\frac{\text { Number of moles of solute }}{\text { Volume of solution (in L) }}$