If The pH of a solution increases by 2 units (e.g., from 1 to 3), then the hydro
ID: 867361 • Letter: I
Question
If The pH of a solution increases by 2 units (e.g., from 1 to 3), then the hydronium ton concern has increased by a factor of The degree of ionization of a weak acid varies with the concentration of the acid. depends on which weak acid it is. is 100%. is greater than 50% but less than 100%. Identify all the correct statements about an acid-base buffer solution. It can be prepared by combining a strong acid with a salt of its conjugate base. It can be prepared by combining a weak acid with a salt of its conjugate base. It can be prepared by combining a weak base with its conjugate acid. The pH of a buffer solution does not change when the solution is diluted. A butter solution resists changes in its pH when an acid or base is added to it.Explanation / Answer
Suppose pH increases from 1 to 3.
pH = -log[H+]
1 = -log[H+]
[H+] = 0.1
if pH = 3
[H+] = 10-3 = 0.001
change is [H+] = 0.1/0.001 = 100
change in hydronium ion = 100
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corret answer : I and II are true statement
degree of ionization depends on concentration of the acid and it varries fromone acid to other.
A weak acid dissociates very less. Hence III and IV are not true
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Correct answer : c
a buffer is prepared by combining a weak acid/base with its salt. A buffer resist the change in pH.
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