A water solution containing an unknown quantity of a nonelectrolyte solute is found to have a freezing point of

–0.23°C. What is the molal concentration of the solution?​

The molal concentration of the solution is approximately 0.124 molal

Explanation:

The given parameters are;

The reduced freezing point of the water = -0.23°C

For freezing point depression of a solution, we have;

= · b·i

Where;

= The freezing point depression

= Cyroscopic constant (The freezing-point depression constant) = 1.86° Cm⁻¹ for water

b = The molality of the solution

i = van't Hoff factor = 1

Therefore;

=

Where;

= The freezing point of pure water = 0°C

= The freezing point of the solution = -0.23°C

∴ = = 0°C - (-0.23°C) = 0.23 °C

From, = · b·i, we have;

0.23°C = 1.86°C/m × b × 1

∴ b  = (0.23°C/1.86°C/m) ≈ 0.124 molal

Therefore, the molal concentration of the solution, b ≈ 0.124 molal.

the energy to form plasma comes from heat or electricity in the atmosphere!

sunny~ ☺

both adhesion and cohesion are attractions.

they are different in that adhesion is the force of attraction between the molecules of two different substances, whereas cohesion is the force of attraction between molecules of the same substance.

possible examples include capillary action, in which the adhesion between water and glass causes the water to rise in a narrow tube against the force of gravity.

because of hydrogen bonding, water is extremely cohesive.

this causes molecules on the surface of water to be drawn inward, which is why drops of water form beads on smooth surfaces.

hope this .