Question

A molar solution is one that contains one mole of solute in:
A) $1000g$ of the solvent
B) One litre of the solvent
C) One litre of the solution
D) $22.4$ litres of the solution

Answer 1

In the given question firstly we have to define the molar solution and the concentration of the molar solution and the amount of solution that would be the right option of the given options. It is considered a solution with the concentration of $1{\text{ }}mol/L$ is said to be $1$ molar, commonly designated as $1$ M. So the right option is B.

Complete solution:
The given question statement asks about the molar solution. The statement also states that the molar solution would be the one that is the one that contains one mole of solute in a particular amount of solution.
The Molar concentration is the one which is also called molarity, amount concentration or substance concentration. It is the given measure of the concentration of a chemical species. That also in particular of a solute in a solution. It is also in terms of amount of substance per unit volume of solution. In the field of chemistry, the most commonly used unit for molarity is the number of moles per liter, having the unit symbol mol/L in SI unit. It is considered a solution with the concentration of $1{\text{ }}mol/L$ is said to be $1$ molar, commonly designated as $1$ M.
Hence the amount of solution would be one litre.

Therefore the right option among the following would be option B, one litre of the solution.

Note: The sum of molar concentrations gives the total molar concentration, namely the density of the mixture divided by the molar mass of the mixture or by another name the reciprocal of the molar volume of the mixture. In an ionic solution, ionic strength is proportional to the sum of the molar concentration of salts..