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pychu [463]
3 years ago
7

What is the gram atomic mass of sodium?

Chemistry
2 answers:
Rom4ik [11]3 years ago
7 0
3.8175407 × 10^-23 g ± 3.3210778 × 10^-32 g
MatroZZZ [7]3 years ago
5 0
3.8175407 x 10^-23 g + 3.3210778 x 10^-32 g
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3 years ago
What does the pKa of the conjugate acid of a base have to be to remove a hydrogen from water (pKa = 15.7) so that the ratio of h
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Answer:

The pKa of the conjugate acid is 17.7

Explanation:

If hydrogen is removed from water, the equilibrium concentration of the conjugate acid according to the information given in the question becomes,

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Now, we determine the equivalent pKa

pKa = -log[ka]

pKa = -log[100]

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Removal of hydrogen from water is reversible as shown below;

H₂O  ⇄    OH⁻ + H⁺

15.7             -2

This reaction is reversible, and the difference in pKa = pKa[H₂O] - pKa[H⁺];

pKa  of the conjugate acid = 15.7 - (-2) = 17.7

The pKa of the conjugate acid is 17.7

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