An alternative way of making Buffer#3 would be to add a limited amount of strong base NaOH to the acetic acid solution. Calculate how many mL of 0.350M NaOHsolution would need to be added to 20.0 mL of your concentrationacetic acidsolution to make the desired pHbuffer. (If time permits, measure the acetic acidsolution into a beaker;slowly add the calculated volumeofNaOHwith stirring while monitoring the pH. Was the desired pH reached?)(optional)13. Method Two: Buffer #3w/desired pH = 5.00 Actual pH(if time)Mixing __________ mL of 0.350MNaOH + 20.0 mL of your 0.100 M CH3COOHCalculation:
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An alternative way of making Buffer#3 would be to add a limited amount of strong base...