Describe How You Would Prepare Exactly 100 Ml Of 0 129 M Picolinate Buffer Ph 5 66 Possible Starting Materials Are Pur 1 (84.95 KiB) Viewed 16 times
Describe How You Would Prepare Exactly 100 Ml Of 0 129 M Picolinate Buffer Ph 5 66 Possible Starting Materials Are Pur 2 (20.29 KiB) Viewed 16 times
Describe how you would prepare exactly 100 mL of 0.129 M picolinate buffer, pH 5.66. Possible starting materials are pure picolinic acid (pyridine-2-carboxylic acid, FM 123.10), 1.0 M HCl, and 1.0 M NaOH. Place the given steps in order. Not all of the steps will be used. Weigh out the required mass of picolinic acid. Transfer the solution to a 100 mL volumetric flask. First step Last step Answer Bank Add NaOH until the measured pH is 5.66. Dilute to 100 mL and mix well. Use small portions of water to rinse the contents of the beaker into the flask. Dissolve the picolinic acid in ~75 mL of water in a beaker. Add HCl until the measured pH is 5.66.
Approximately how many milliliters of the HCl or NaOH will be required? volume: mL
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