M.Sc. Chemistry (PU-CET P.G) 2019 Panjab University Entrance Exam With Answers

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67.

What is the log γ ± Value of aqueous solution of Na2SO4 of 0.001 molality at 250C? Where γ ± is means ionic activity coefficient and for water at 250C, the value of Debye-Huckel constant is 0.509.

A: 0.879
B: -0.055
C: - 0.003
D: -0.905

The answer is: B

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