Question

When can we use A = Ao - Bc^(1/2) and measure Ao = l+o + l-o?

a) When calculating osmotic pressure
b) When studying the behavior of gases
c) When analyzing conductance of electrolytes
d) When measuring the pH of a solution

Answer 1

The equation A = Ao - Bc^(1/2) is used in the context of chemistry to analyze the conductance of electrolytes.

Step-by-step explanation:

The equation A = Ao - Bc^(1/2) and the measurement method Ao = l+o + l-o are typically used when analyzing the conductance of electrolytes. In this context, Ao represents the limiting molar conductance, which is determined by the sum of the limiting molar conductivities of the cation (l+o) and anion (l-o), and A gives the actual molar conductance of an electrolyte solution at concentration c. This equation is rooted in Kohlrausch's Law of Independent Migration of Ions, which states that each ion makes a definite contribution to the total conductance of an electrolyte and the sum of these contributions at infinite dilution equals the limiting molar conductance of the electrolyte.