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

the cellphone, they would then know if the killer would have contacted them or always hated them. or if it was a breakup. but if that is not the case, then it would be the clothing. to put in a bullet, it would have to be put in by hands. hands have finger prints which, would have giving you the answer of who done it.

explanation:

the closer the planet is to the sun, the larger the gravity

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2