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What Is the PH of a 0 Ka2=1.0×10−11?K _ { \mathrm { a } 2 } = 1.0 \times 10 ^{- 11} ?

Question 111

Multiple Choice

What is the pH of a 0.40 mol L-1 H2Se solution that has the stepwise dissociation constants Ka1 = 1.3 × 10-4 and Ka2=1.0×10−11?K _ { \mathrm { a } 2 } = 1.0 \times 10 ^{- 11} ?


A) 2.14
B) 3.89
C) 4.28
D) 5.57

Correct Answer:

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