As a technician in a large pharmaceutical research firm, you need to produce 450. ml of 1.00 m potassium phosphate buffer solution of ph = 6.97. the pka of h2po4− is 7.21. you have the following supplies: 2.00 l of 1.00 m kh2po4 stock solution, 1.50 l of 1.00 m k2hpo4 stock solution, and a carboy of pure distilled h2o. how much 1.00 m kh2po4 will you need to make this solution? express your answer to three significant digits with the appropriate units.
Answers: 1
Chemistry, 23.06.2019 10:10, nancysue1975
Calculate the h3o+ concentration in a solution of acetic acid if the concentration of molecular acetic acid present at equilibrium is 9.97x10-3 m and k for the dissociation is 1.86x10-5. ch3cooh(aq)+h2o(l)+> h3o+(aq)+ch3coo-(aq) show me how to get the answer.
Answers: 3
Chemistry, 23.06.2019 13:30, michealsfamily
The activation energy for a(n) is quite large and usually takes extra energy from the environment, it is normally not a natural spontaneous process. combustion reaction endothermic reaction exothermic reaction catalyzed reaction
Answers: 1
As a technician in a large pharmaceutical research firm, you need to produce 450. ml of 1.00 m potas...
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