Typically the concentration of hydronium, H3O+, or hydroxide, OH?, ions in an aqueous solution is less than 1 M. It is not uncommon to have hydronium ion concentrations that are much smaller, such as 2.60

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Given: H2O(aq) + H2O(l) H3O+(aq) + OH-(aq) HÂ°rxn > 0
When the temperature of a sample of pure water is raised above 25Â°C,

A) the hydronium ion concentration will be greater than thehydroxide ion concentration.
B) the hydronium ion concentration will be less than the hydroxideion concentration.
C) the value of Kw will increase.
D) the hydronium ion concentration could change to 1.0 10-10M.
E) the hydroxide ion concentration could change to 1.0 10-10 M.

1. The hydronium ion concentration of an aqueous solution of 0.417 M isoquinoline (a weak base with the formula C₉H₇N) is
[H₃O⁺] =

2. The pOH of an aqueous solution of 0.417 M pyridine (a weak base with the formula C₅H₅N) is

3. The hydroxide ion concentration, [OH^-], of an aqueous solution of 0.417 M codeine (a weak base with the formula C₁₈H₂₁O₃N) is

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Typically the concentration of hydronium, H3O+, or hydroxide, OH?, ions in an aqueous solution is less than 1 M. It is not uncommon to have hydronium ion concentrations that are much smaller, such as 2.60

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