Pleasseee help!! Got STUCK FOR A WHILE!! How does this equation help you to understand acids and bases: H+(aq) + OH-(aq)H2O(aq)?

Chemistry

1 answer:

Gekata [30.6K]2 years ago

7 0

Answer:

Odd answer choices, but I would put "It shows you that water is a reversible reaction, which contains hydrogen and hydroxide reactions."

Explanation:

The first choice is weird, although water can be written as HOH that doesn't help you understand acids and bases.

The third choice doesn't do that either, and there are more ways for water to be formed than that.

The second choice helps you understand acids and bases, specifically, in water's self-ionization process. It also shows you that it is neutral because it is formed from Hydrogen, which is usually present in acids, and a Hydroxide group, which is usually present in bases.

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Answer:

This solution acts as an efficient buffer

Explanation:

the pH of a buffer solution can be described like this: $pH=pKa+log\frac{[base]}{[acid]}$

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and now lets supose that we increase [acid] to 0.1 $pH=4.76+log\frac{0.01}{0.1} = 3.76$

Big changes in concentration of base or acid doesn´t produce big changes in pH, in that way the mix of sodium acetate with acetic acid is a good buffer solution.

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