What do the following results from the TEST FOR LIFE tab indicate about the sample?
1 answer:
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Answer:
pH = 10.11
Explanation:
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In this case, since it is possible to realize that this base is able to acquire one hydrogen atom from the water:
We can therefore set up the corresponding equilibrium expression:
Which can be written in terms of the reaction extent, :
Thus, by solving for we obtain:
However, since negative solutions are now allowed, we infer the correct is 0.0001285 M; thus, the pOH can be computed:
And finally the pH:
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Answer: Option (a) is the correct answer.
Explanation:
A weak acid is defined as an acid that dissociates partially when dissolve in water or a polar solvent.
For example, acetic acid is a weak acid and when dissolved in water it dissociates partly into ions as follows.
And, a strong acid is defined as an acid which when dissolved in water dissociates completely into ions.
For example, HCl is a strong acid and when dissolved in water it dissociates completely.
Thus, we can conclude that the statement a weak acid solution consists of mostly non-ionized acid molecules, is true.