1. a)Which of the following statements are TRUE for a buffer solution. Select all that are True. _...

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Chemistry

1. a)Which of the following statements are TRUE for a buffersolution.
Select all that are True.
_ A buffer can be prepared by combining a weak acid and itsconjugate base.\"
_ A buffer resists changes in pH.
_ When a strong acid is added to a buffer, it reacts with theconjugate base which slightly increases the pH of the solution.

3. Given the following data set: Indicate where the bufferecapacity has been exceeded.
Solution pHÂ Â Â Â Â Â Â Â Â Change in pHÂ Â Â
Acetic acid (25 mL)Â Â Â Â Â Â 2.88Â Â
Sodium acetate 7.46
Mixture (50 mL) 4.70
After 5 mL NaOH 4.90 0.20Â Â
After 10 mL NaOH 5.13 0.23
After 15 mL NaOH 5.42 0.29
After 20 mL NaOH 5.95 0.53
After 25 mL NaOH 11.17 5.22

The buffer capacity was exceeded when_______mL of NaOH wasadded?

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1 Ans All the statements are True Explanation A buffer solution is formed by a weak acid example Acetic acid and its conjugate base example Acetate Purpose of the buffer solution is to resist the change See Answer

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Solution	pHÂ Â Â Â Â Â Â Â Â	Change in pHÂ Â Â
Acetic acid (25 mL)Â Â Â Â Â Â	2.88Â Â
Sodium acetate	7.46
Mixture (50 mL)	4.70
After 5 mL NaOH	4.90	0.20Â Â
After 10 mL NaOH	5.13	0.23
After 15 mL NaOH	5.42	0.29
After 20 mL NaOH	5.95	0.53
After 25 mL NaOH	11.17	5.22