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    Exam 18: Hydrogen, oxygen, and Water
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    The Dissociation of D<sub>2</sub>O Is Shown Below
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The Dissociation of D2O Is Shown Below

Question 23

Question 23

Multiple Choice

The dissociation of D2O is shown below.
D2O ⇌ D+(aq) + OD-(aq) K = 1.95 × 10-15 at 25°C
In order to be acidic a D2O solution must have a pH (= pD) that is


A) greater than 7.00
B) greater than 7.35
C) less than 7.00
D) less than 7.35

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