Complete the flow chart with the steps necessary for diluting a prepared buffer

Question

Complete the flow chart with the steps necessary for diluting a prepared buffer solution. Make of the assigned 1:1 buffer solution in a clean beaker. Obtain of the followed by of the buffer solution. Carefully fill to the line with and invert 10 times to mix the solution. Pour the resulting solution into a dean and record the pH. Repeat for the other two solutions making sure to clean and rinse all glassware between uses. In your pre-lab, prepare a similar procedure for making the -fold dilution.

Explanation / Answer

Make 50.0 ml of the assigned 1:1 buffer solution in a clean 100 ml beaker. Obtain 25 ml of the weak acid and conjugate base solutions.

Dilute the buffer solution in a 50.0 ml volumetric flask by a factor of 0.5 by adding a little water, followed by stock of the buffer solution. Carefully fill to the line with dropper and invert 10 times to mix the solution. Pour the resulting solution into a clean beaker and record the pH. Repeat the other two solutions making sure to clean and rinse all glassware between uses.

In your pre-lab, prepare a similar procedure for making the 1/2 fold dilution.

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