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Which of the following responses are true? 1. A buffer is formed when you add HC

ID: 800928 • Letter: W

Question

Which of the following responses are true?

1. A buffer is formed when you add HCl to NH3
2. A buffer is formed when you add HCl to CH3COOH
3. The buffer with the greatest buffering capacity for an phenol/sodium phenolate buffer system will have a pH of 9.60
4. A buffer resists pH change when base is added by converting hydroxide ions to hydronium ions
5. A buffered system can be formed by combining a weak base/conjugate acid pair in solution

I said that #3, #4, and #5 were true but it says im wrong

Explanation / Answer

3. The buffer with the greatest buffering capacity for an phenol/sodium phenolate buffer system will have a pH of 9.60

5. A buffered system can be formed by combining a weak base/conjugate acid pair in solution

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