Define and illustrate equivalent mass of an acid.

Define Molality. $29.25 \mathrm{g}$ of $\mathrm{NaCl}$ is present in $529.25 \mathrm{g}$ of the solution. Find out the molality.

What is the molality of a solution containing $40 \mathrm{g}$ of $\mathrm{NaOH}$ in $1000 \mathrm{mL}$ of water?

Define surface tension.

Define the term viscosity.

Define the term coefficient of viscosity.

What do you understand by the viscosity of a liquid?

Distinguish between diffusion and osmosis.