Which of the following is the EXACT (non-approximated) mathematical formula for the relative lowerin — Solutions and Colligative Properties Chemistry Question

💡 Solution & Explanation

The standard formula is $\frac{P^0_A - P_s}{P^0_A} = \frac{n_B}{n_A + n_B}$. By taking the reciprocal, subtracting 1, and re-inverting, it derives to the powerful exact formula: $\frac{P^0_A - P_s}{P_s} = \frac{n_B}{n_A}$. Using $P_s$ in the denominator removes the need for dilute approximations.