Provide the mathematical expression for Dalton's law of partial pressure.

(N/A) According to Dalton's law of partial pressure,the total pressure exerted by a mixture of non-reacting gases is equal to the sum of the partial pressures of the individual gases.
The mathematical expression is:
$p_{total} = p_1 + p_2 + p_3 + \ldots + p_n$ $(i)$
Since $p_i = \frac{n_i RT}{V}$,the expression can be written as:
$p_{total} = (n_1 + n_2 + \ldots + n_n) \frac{RT}{V}$ (ii)