Podcast
Questions and Answers
Which of the following acids is classified as a binary acid?
Which of the following acids is classified as a binary acid?
All acids must be dissolved in water to be classified as acids.
All acids must be dissolved in water to be classified as acids.
True
What is the naming rule for oxyacids derived from polyatomic ions whose names end with '-ate'?
What is the naming rule for oxyacids derived from polyatomic ions whose names end with '-ate'?
'-ic acid'
Hydrosulfuric acid is an example of a _______ acid.
Hydrosulfuric acid is an example of a _______ acid.
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Match the following acids with their corresponding descriptions:
Match the following acids with their corresponding descriptions:
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Study Notes
Acids
- Acids are chemical compounds containing hydrogen as a cation and one or more non-metals as an anion.
- Acids must be dissolved in water (aqueous) to exhibit acidic properties. This is represented by "aq" in their formula.
- Binary acids contain hydrogen and one non-metal.
- The nomenclature for binary acids starts with "hydro-", followed by the root of the non-metal and ends with "-ic acid".
- Examples of binary acids:
- Hydrochloric acid (HCl(aq))
- Hydrosulfuric acid (H₂S(aq))
- Oxyacids contain hydrogen, oxygen, and one or more other non-metal.
- Oxyacids do not contain the prefix "hydro" in their name.
- The nomenclature for oxyacids depends on the polyatomic ion's ending:
- If the polyatomic ion's ending is "-ate", it is changed to "-ic acid".
- Examples:
- Phosphoric acid (H₃PO₄(aq))
- Sulfuric acid (H₂SO₄(aq))
- Naming oxyacids prioritizes oxygen; hence, "hydrophosphoric acid" (a binary acid) is named differently than "phosphoric acid," despite "hydrophosphoric acid" being a larger compound.
- If the polyatomic ion ends in "-ite," it is changed to "-ous acid".
- Examples:
- Carbonic acid (H₂CO₃(aq))
- To determine the formula of an acid, follow these steps:
- Identify the hydrogen cation and the non-metal or polyatomic anion.
- Determine their charges and apply the criss-cross method to find subscripts.
- Add "aq" to indicate it is dissolved in water.
Worksheet
- Students should work through a worksheet, highlighting binary acids and writing their formulas and names.
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Description
This quiz covers the essential concepts of acids, including binary and oxyacids, as well as the naming conventions used for these compounds. Test your understanding of how acids are formed and the important distinction between different types of acids based on their composition and state. Ideal for students studying general chemistry.
