Consider the following statements:

(a) The pH of a mixture containing 400 mL of 0.1 M and 400 mL of 0.1 M NaOH will be approximately 1.3.
(b) Ionic product of water is temperature dependent.
(c) A m

Question

Consider the following statements:

(a) The pH of a mixture containing 400 mL of 0.1 M  and 400 mL of 0.1 M NaOH will be approximately 1.3.
(b) Ionic product of water is temperature dependent.
(c) A monobasic acid with  has pH = 5. The degree of dissociation of this acid is 50%.
(d) The Le Chatelier's principle is not applicable to common-ion effect.

The correct statements are:

Canvas Classes · Accepted Answer

Step 1 — Evaluate each statement:

(a) pH of mixture of 400 mL 0.1M  + 400 mL 0.1M NaOH:
Moles  from  =  mol
Moles  from NaOH =  mol
Excess  =  mol in 800 mL
 M  pH =  ✓ Correct

(b)  is temperature dependent: ✓ Correct —  increases with temperature.

(c) , pH = 5, degree of dissociation = 50%:
If pH = 5,  M
; if : 
For :  M,  ✓ Correct

(d) Le Chatelier's principle NOT applicable to common-ion effect: ✗ Incorrect — Le Chatelier's principle IS the basis for the common-ion effect.

Correct: a, b,

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