Question

Calculate the ph of a saturated solution of strychnine (16 mg/100ml).

Answer 1

The pH of a saturated solution of strychnine (16 mg/100ml) is approximately 12.6.

Step-by-step explanation:

The pH of a saturated solution of strychnine (16 mg/100ml) is approximately 12.6. This can be calculated using the formula pH = 14 + log[H+]. In this case, the concentration of hydrogen ions ([H+]) is 0.04 M. Plugging this value into the equation, we get pH = 14 + log(0.04), which results in a pH of approximately 12.6.

Answer 2

The Initial concentration of strychnine which has a chemical formula of C21H22N2O2, can be found from the mass of the strychnine, the molar mass, and the volume of the solution.

[C21H22N2O2 ] initial = (mass of strychnine / molar mass of strychnine) / volume of solution

= (0.016 g / 334.418 g/mol) / (0.100 L)

= (4.78 x 10-5 mol) / (0.100 L)

= 4.8 x 10-4 mol/L

[C21H22N2O2 ] initial = 9.46