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Chapter 5: Problem 144

Acetic acid, sulfurous acid, and phosphoric acid can each be thought of as an anion with one or more \(\mathrm{H}^{+}\) ions attached. For each acid, how many \(\mathrm{H}^{+}\) ions have been attached to the anion?

Short Answer

Expert verified
In acetic acid (\(\mathrm{CH}_{3}\mathrm{COOH}\)), there is 1 hydrogen ion attached to the anion. In sulfurous acid (\(\mathrm{H}_{2}\mathrm{SO}_{3}\)), there are 2 hydrogen ions attached to the anion. In phosphoric acid (\(\mathrm{H}_{3}\mathrm{PO}_{4}\)), there are 3 hydrogen ions attached to the anion.

Step by step solution

01

Write the chemical formula of Acetic Acid.

The chemical formula of acetic acid is \(\mathrm{CH}_{3}\mathrm{COOH}\).
02

Identify the number of Hydrogen ions attached to the anion.

In the formula \(\mathrm{CH}_{3}\mathrm{COOH}\), only the \(\mathrm{H}\) from the \(\mathrm{COOH}\) group is acidic and can form \(\mathrm{H}^{+}\) ions. Therefore, there is only 1 hydrogen ion attached to the anion. -Sulfurous acid:
03

Write the chemical formula of Sulfurous Acid.

The chemical formula of sulfurous acid is \(\mathrm{H}_{2}\mathrm{SO}_{3}\).
04

Identify the number of Hydrogen ions attached to the anion.

In the formula \(\mathrm{H}_{2}\mathrm{SO}_{3}\), there are 2 hydrogen atoms that can form \(\mathrm{H}^{+}\) ions. Therefore, there are 2 hydrogen ions attached to the anion. -Phosphoric acid:
05

Write the chemical formula of Phosphoric Acid.

The chemical formula of phosphoric acid is \(\mathrm{H}_{3}\mathrm{PO}_{4}\).
06

Identify the number of Hydrogen ions attached to the anion.

In the formula \(\mathrm{H}_{3}\mathrm{PO}_{4}\), there are 3 hydrogen atoms that can form \(\mathrm{H}^{+}\) ions. Therefore, there are 3 hydrogen ions attached to the anion. In conclusion, for acetic acid, there is 1 hydrogen ion attached to the anion, for sulfurous acid, there are 2 hydrogen ions attached to the anion, and for phosphoric acid, there are 3 hydrogen ions attached to the anion.

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