Acid Chemistry Example 2

Follow the full solution, then compare it with the other examples linked below.

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Distinguish between a strong acid and a weak acid. Give an example of each.

1
A strong acid completely dissociates in water: $\text{HCl} \rightarrow \text{H}^+ + \text{Cl}^-$ (100% ionization).
2
A weak acid partially dissociates: $\text{CH}_3\text{COOH} \rightleftharpoons \text{H}^+ + \text{CH}_3\text{COO}^-$ (equilibrium exists).
3
Strong acids produce more $\text{H}^+$ for the same concentration, resulting in lower pH.

Answer

\text{Strong: HCl (100\% dissociation). Weak: CH}_3\text{COOH (partial)}

The strength of an acid refers to the degree of ionization, not the concentration. A concentrated weak acid is not the same as a strong acid.

About Acid

A substance that donates $\text{H}^+$ ions (protons) when dissolved in water, increasing the hydrogen ion concentration and lowering the pH below 7.

According to the Arrhenius definition, what makes a substance an acid? Give two examples.

Name three common strong acids.

What particle does an acid donate in solution, and how does that affect the hydrogen-ion concentrati