0.004 M solution is isotonic with 0.01 M glucose solution. Percentage dissociation of is (Nearest integer)

Question

0.004 M  solution is isotonic with 0.01 M glucose solution. Percentage dissociation of  is  (Nearest integer)

Canvas Classes · Accepted Answer

Strategy:
 Isotonic solutions have equal osmotic pressures, which correlates to equal effective molar concentrations (). Since glucose is a non-electrolyte (), the effective concentration of  must match the molarity of glucose.

Step 1: Set effective concentrations equal

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Step 2: Solve for the van't Hoff factor () of

Step 3: Calculate the degree of dissociation ()
For , the number of ions () is 3.

Percentage dissociation = .

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