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Topic: General Chemistry Acid and Bases Question  (Read 936 times)

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Offline cataban11

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General Chemistry Acid and Bases Question
« on: April 02, 2020, 12:18:06 PM »
I have two questions I am unsure of

For which of the following 0.10 M diprotic acids would the second dissociation affect the pH significantly?
Question 3 options:
H2C; Ka1 = 1.3 × 10–4, Ka2 = 5.2 × 10–9T
he second dissociation never affects the pH significantly.
H2A; Ka1 = 4.2 × 10–2, Ka2 = 1.8 × 10–7
H2B; Ka1 = 2.4 × 10–4, Ka2 = 6.1 × 10–8
H2D; Ka1 = 1.8 × 10–3, Ka2 = 9.3 × 10–4
(I put B, but D is pretty close to original Ka)

Which of the following solutions is incorrectly described?Question 1 options:
0.20 M ClOH would be basic
0.15 M HN3 would be acidic
0.25 M NH4Cl would be acidic
0.15 M KBr would be neutral
0.25 M NaH would be basic
(I think it is C. NH4Cl or B. HN3)

Offline chenbeier

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Re: General Chemistry Acid and Bases Question
« Reply #1 on: April 02, 2020, 12:44:50 PM »
2. Question, what is ClOH in your opinion?

Offline Babcock_Hall

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Re: General Chemistry Acid and Bases Question
« Reply #2 on: April 02, 2020, 02:26:37 PM »
cataban11,
Can you give us your reasoning?

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