The pain killer morphine is a weak base when added to water.The K_b is 1.6 $\times$ 10^-⁶.What is the pH of a 4.33 $\times$10^-³M solution of morphine? A)4.08 B)9.92 C)5.84 D)9.77 E)none of these

Question

Quizplus · Accepted Answer

To find the pH of a weak base solution, we first calculate the pOH using the formula: pOH = 0.5 * (pKb - log[C]), where [C] is the concentration of the base. Here, pKb = -log(1.6 x 10^-6) ≈ 5.80. So, pOH = 0.5 * (5.80 - log(4.33 x 10^-3)) ≈ 4.08. Then, pH = 14 - pOH = 14 - 4.08 = 9.92.

The Pain Killer Morphine Is a Weak Base When Added ×\times×

The Pain Killer Morphine Is a Weak Base When Added $\times$