Question

which aqueous solution has higher concentration??
1 molar or 1 molar? give reason

Answer 1

Hey !!

Here density determines the relative concentrations of the solutions.

CASE - 1 When density of solvent is 1 h/mL. In aqueous solution, density of water is normally taken as 1. This means that 1 m solution has 1 mole of the solute dissolved in 1000 g or 1000 mL of the solvent. At the same time 1 M solution contains 1 mole of the solute in 1000 mL, solution which is the volume of both the solute and solvent present in the solution. This clearly shows that the solvent present in 1 M solution is less as compared to 1 m solution. Therefore, 1 M solution is more concentrated than 1 m solution.

CASE - 2 When density of the solvent is less than 1 g/mL: This means that the volume of solvent ( mass / density ) will be more compared to its mass. Thus, 1 M solution will be less concentrated than 1 m solution.

CASE - 3 When density of the solvent is more than 1 g/mL : This means that the volume of the solvent will be less than its mass, Under these circumstances, 1 M solution will be more concentrated than 1 m solution.

Hope it helps you !!