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Medical College Admission Test
Chemical and Physical Foundations of Biological Systems

Electrolyte Contribution to Conductivity

Very Hard General Chemistry Solution Chemistry

A researcher is studying the properties of a solution containing a strong electrolyte and a weak electrolyte. The strong electrolyte completely dissociates in solution, while the weak electrolyte establishes an equilibrium between its molecules and ions. The researcher measures the conductivity of the solution and finds it to be significantly higher than that of a pure solvent. The researcher's objective is to determine the relative contributions of the electrolytes to the overall conductivity of the solution.

Consider the following statements:

  • Statement 1: The conductivity of the solution is directly proportional to the concentration of ions present.
  • Statement 2: The strong electrolyte contributes more to the conductivity than the weak electrolyte at equivalent molar concentrations.
  • Statement 3: The degree of dissociation of the weak electrolyte decreases as its concentration increases.

Based on the above information, which of the following statements about the solution is correct regarding its conductivity?

Hint

Submitted4.3K
Correct2.8K
% Correct65%