please show work and explanations. please. - A flask contains 300 mL of 0.13 M p

Question

please show work and explanations. please.

- A flask contains 300 mL of 0.13 M phosphate buffer that has a pH of 7.5. What volume of 0.2 M                 

                                                    NaOH should be added to increase the pH to 7.4?
                                                

                                                    What is the pH of 20 mL of 0.14M acetic acid?
                                                

                                                    What is the pH of 40 mL of 0.14M acetic acid?                                                 

Explanation / Answer

pH is a function of concentration, not volume, so yes, the answer will be the same pH is a function of concentration, not volume, so yes, the answer will be the same

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