The conductivity of 0.001 M Na2SO4 solution is 2.6×10–4 S cm–1 an – InterviewSolution

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1.	The conductivity of 0.001 M Na2SO4 solution is 2.6×10–4 S cm–1 and increases to 7×10–4 S cm–1 , when the solution is saturated with CaSO4. The molar conductivity of Na+ and Ca2+ are 50 and 120 S cm2 mol–1, respectively. Neglect the conductivity of water, find the solubility product of CaSO4.
Answer» The conductivity of $0.001 M$ $N a_{2} S O_{4}$ solution is $2.6 \times 10^{- 4} {S cm}^{- 1}$ and increases to $7 \times 10^{- 4} {S cm}^{- 1}$ , when the solution is saturated with $C a S O_{4}$ . The molar conductivity of $N a^{+}$ and $C a^{2 +}$ are $50$ and $120 {S cm}^{2} {mol}^{- 1}$ , respectively. Neglect the conductivity of water, find the solubility product of $C a S O_{4}$ .

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