Aqueous solution of 0.004 M N a 2 S O 4 and 0.01 M glucose are isotonic. The percentage degree of dissociation of N a 2 S O 4 is

Question

Aqueous solution of 0.004 M N a 2 S O 4 and 0.01 M glucose are isotonic. The percentage degree of dissociation of N a 2 S O 4 is, 85 %, 75 %, 60 %, 25 %

MARKS App · Accepted Answer

For two solutions to be isotonic. i × π Na 2 SO 4 = π Glucose 1 + 2 α C 1 R T = C 2 R T 1 + 2 α × 0.004 = 0.01 α = 0.75 or 75 %

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