Below what pH will free phenobarbital begin to separate from a solution having an initial concentration of 4 g of sodium
phenobarbital per 100 mL at 25°. The molar solubility of
phenobarbital is 0.0050 and the pKa is 7.41 at 25°C. The molecular
weight of sodium phenobarbital is 254

their crystal patterns have been disrupted by stress

it is called kinetic energy

hello, i am papaguy.

i have found an answer to your question but use it as information.

information: because weak acids/bases have low concentration of hydrogen ions, the addition of water has a large impact on the ph. 2. a difference in 1 unit is a 10x difference in concentration for example; a liquid with ph of 3 is 10x more acidic than a liquid with a ph of 4. therefore, a liquid with a ph of 3 is stronger.

best of luck!