Please help me calculate the theoretical pH of a buffer solution containing 0.012mol NaC2H3O2 + 0.012mol of HC2H3O2 in 25mL of solution with an added 6M HCl.
F. Observing a Buffer System You will make up a buffer solution that contains sodium acetate and acetic acid. The buffer solution will contain 0.012 moles of NaC2H3O2 and 0.012 moles of HC2H302 in 25 mL of solution easure out 3.3 g of solid sodium acetate trihydrate (NaC2H3O2-3H20) in a 100 mL beaker. Add 4.0 mL of 6M HC HsO2 to the beaker using a graduated cylinder. Then add 46 mL of distilled water to the beaker, stirring until the salt has completely dissolved. This is your buffer solution. ou will test how the pH of 25 mL of distilled water and of 25 mL of buffer solution is affected by the addition f0.5 mL of 6 M HCl and of 0.5 mL of 6 M NaOH. See the data table for clarification. For example, you will measure out 25 mL of distilled water into a 50 mL beaker. Measure the pH of the distilled water by itself before proceeding. Then use a Mohr pipet to measure out 0.5 mL of 6 M HCL,and add it to the distilled water. Stir well and measure the pH When you have observed how both the distilled water and the buffer solution respond to added acid or base, and have recorded all of the pH measurements in the data table, transfer all of the waste into a large waste beaker. Test the pH of the waste solution. If it is between 4 and 9, the solution can be dumped directly down the drain. If it is lower than 4, add 6M NaOH to bring it into the safe range. If it is higher than 9, add 6 M HCI to bring it into the safe range so that it can be dumped down the drain. Solution Measured pH Theoretical pH istilled water istilled water with added 6M HCI istilled water with added 6M NaOH Be sure to show all your work calculating theoretic pH values. riginal buffer solution buffer solution with added 6M HCl buffer solution with added 6NOH s. I0
