Question

(1) Define the following
(i) Henry's law
(ii) Normality.

Answer 1

• Henry’s Law
  

A law stating that the mass of a dissolved gas in a given volume of solvent at equilibrium is proportional to the partial pressure of the gas.

• Normality-
  

Normality is a measure of concentration equal to the gram equivalent weight per liter of solution. Gram equivalent weight is the measure of the reactive capacity of a molecule. The solute's role in the reaction determines the solution's normality.