The hydronium ion concentration of your gastric fluid is 1.0 x 10^-2. you drink a tablespoon of milk of magnesia, which raises the ph of the fluid by one unit. what is the resulting concentration of hydroxide ions in the fluid

1 * 10^-11 units.

Explanation:

Given:

[H+] = 1 * 10^-2

pH = - log [H+]

= - log [1 * 10^-2]

= 2

The question further said, "which raises the ph of the fluid by one unit"

pH (new) = 2 + 1

= 3

pH + pOH = 14

pOH = 14 - 3

= 11

pOH = - log [OH-]

[OH-] = 10^-11

= 1 * 10^-11 units