What Is the Hydronium Ion Concentration of a 0

question 113

Multiple Choice

What is the hydronium ion concentration of a 0.100 M hypochlorous acid solution with K_a = 3.5 × 10^-8? The equation for the dissociation of hypochlorous acid is: HOCl(aq) + H₂O(l) ⇌ H₃O⁺(aq) + OCl^-(aq) .

• A)1.9 × 10^-4
• B)5.9 × 10^-4
• C)1.9 × 10^-5
• D)5.9 × 10^-5

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Definitions:

Probability

A numerical assessment, between 0 and 1, representing the chance of an event taking place.

Poisson Random Variable

A type of random variable that expresses the probability of a given number of events happening in a fixed interval of time or space, assuming events occur with a known constant mean rate and independently of the time since the last event.

Average Number

The arithmetic mean, calculated as the sum of all values in a set divided by the number of values in the set.

Event Occurs

Indicates the happening of a specific condition or outcome within a statistical experiment.