Buffer 1: Using a graduated cylinder measure out 20.0 mL of 0.10 M acetic acid. Using a pipet, pipet 25.0 mL of 0.10 sodium acetate into a 100mL beaker. Stir the solution in the beaker. Once mixed, measure the pH of the solution using your pH meter. Buffer 2: Using the analytical balance weigh 0.5731 grams NH4CI and add to 60.00 mL of 0.100 M NH3 (aq) using a graduated cylinder. To weigh the solid, tare the analytical balance with a piece of weigh paper (set to zero). Add you solid from the container to the paper. Write down the mass in your notebook. Add the solid to a 100mL beaker then add 60.00mL of 0.100M NH3 and stire. Measure the pH. Buffer 3: Lastly, measure out using a graduated cylinder 25.0 mL of 0.100 M ammonia into a 100mL beaker and add 16.0mL using a graduated cylinder of 0.1M HCI (aq) to the beaker. Stir. The HCl reacts with the ammonia to form ammonium which is a buffer. Measure the pH.

Buffer 1: Using a graduated cylinder measure out 20.0 mL of 0.10 M acetic acid. Using a pipet, pipet 25.0 mL of 0.10 sodium acetate into a 100mL beaker. Stir the solution in the beaker. Once mixed, measure the pH of the solution using your pH meter. Buffer 2: Using the analytical balance weigh 0.5731 grams NH4CI and add to 60.00 mL of 0.100 M NH3 (aq) using a graduated cylinder. To weigh the solid, tare the analytical balance with a piece of weigh paper (set to zero). Add you solid from the container to the paper. Write down the mass in your notebook. Add the solid to a 100mL beaker then add 60.00mL of 0.100M NH3 and stire. Measure the pH. Buffer 3: Lastly, measure out using a graduated cylinder 25.0 mL of 0.100 M ammonia into a 100mL beaker and add 16.0mL using a graduated cylinder of 0.1M HCI (aq) to the beaker. Stir. The HCl reacts with the ammonia to form ammonium which is a buffer. Measure the pH.

Appl Of Ms Excel In Analytical Chemistry

2nd Edition

ISBN:9781285686691

Author:Crouch

Publisher:Crouch

Chapter9: Complexometric And Precipitation Titrations

Section: Chapter Questions

Problem 15P

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