We’re being asked to determine the OH- concentration if [H3O+] is 1000 times greater than [OH].
Recall: Kw = 1.0 × 10–14 at 25.0 ˚C.
Kw is the auto-ionization product of water. For the following reaction:
2 H2O(l)⇌ H3O+(aq) + OH–(aq)
the auto-ionization product constant is given by:
Note that each concentration is raised by the stoichiometric coefficient:[H3O+] and [OH–] are raised to 1.
Calculate [OH-] for each of the following solutions, and indicate whether the solution is acidic, basic, or neutral.
A solution in which [H+] is 1000 times greater than [OH-]. Express your answer using two significant figures.
[OH-] = _____ M
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