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Acid
Acid
A molecule that contains hydrogen as its cation and one or more nonmetals as its anion, dissolved in water.
Binary Acid
Binary Acid
Acids with only two elements, hydrogen and a nonmetal.
Oxyacid
Oxyacid
Acids containing oxygen, hydrogen, and one or more nonmetals.
Hydro prefix
Hydro prefix
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Naming Oxyacids with -ate
Naming Oxyacids with -ate
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Naming Oxyacids with -ite
Naming Oxyacids with -ite
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Acid Formula
Acid Formula
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Binary Acid Nomenclature
Binary Acid Nomenclature
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Formation of Oxyacids
Formation of Oxyacids
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What is the key characteristic of acids?
What is the key characteristic of acids?
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What are binary acids?
What are binary acids?
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What are oxyacids?
What are oxyacids?
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How are oxyacids named if their corresponding polyatomic ion ends in "ate"?
How are oxyacids named if their corresponding polyatomic ion ends in "ate"?
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What is one characteristic of oxyacids?
What is one characteristic of oxyacids?
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What is hydrochloric acid and where is it found?
What is hydrochloric acid and where is it found?
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Why is saltwater not considered an acid?
Why is saltwater not considered an acid?
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What is hydrosulfuric acid?
What is hydrosulfuric acid?
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What is phosphoric acid and where is it used?
What is phosphoric acid and where is it used?
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What are some uses for sulfuric acid?
What are some uses for sulfuric acid?
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What is the main characteristic of an acid?
What is the main characteristic of an acid?
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What is a binary acid?
What is a binary acid?
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What is an oxyacid?
What is an oxyacid?
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What is the naming rule for oxyacids with polyatomic ions ending in '-ate'?
What is the naming rule for oxyacids with polyatomic ions ending in '-ate'?
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What is the naming rule for oxyacids with polyatomic ions ending in '-ite'?
What is the naming rule for oxyacids with polyatomic ions ending in '-ite'?
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What is the fundamental difference between binary and oxyacids?
What is the fundamental difference between binary and oxyacids?
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How can you distinguish a binary acid from an oxyacid by name?
How can you distinguish a binary acid from an oxyacid by name?
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Are all compounds containing hydrogen acids?
Are all compounds containing hydrogen acids?
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What does the symbol 'aq' in a chemical formula indicate?
What does the symbol 'aq' in a chemical formula indicate?
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Describe the elemental composition of binary acids and oxyacids.
Describe the elemental composition of binary acids and oxyacids.
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What are acids?
What are acids?
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How do you name oxyacids with '-ate' ending polyatomic ions?
How do you name oxyacids with '-ate' ending polyatomic ions?
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How do you name oxyacids with '-ite' ending polyatomic ions?
How do you name oxyacids with '-ite' ending polyatomic ions?
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What are some key points to remember when identifying acids?
What are some key points to remember when identifying acids?
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What is the difference between hydrogen chloride and hydrochloric acid?
What is the difference between hydrogen chloride and hydrochloric acid?
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What is phosphoric acid?
What is phosphoric acid?
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What is sulfuric acid?
What is sulfuric acid?
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Study Notes
Acids
- Acids are chemical compounds containing hydrogen as a cation and one or more nonmetals as an anion.
- Acids must be dissolved in water to be classified as acids, denoted by "(aq)" after the chemical formula.
- Acids are categorized as binary acids or oxyacids.
- "Aq" stands for aqueous, meaning dissolved in water.
- All acids contain hydrogen as its cation.
- Acids are compounds that contain hydrogen as a cation (positively charged ion) and one or more nonmetals in the anion (negatively charged ion).
Binary Acids
- Binary acids contain hydrogen and one other non-metal atom, dissolved in water.
- Binary acid nomenclature always starts with "hydro", followed by the root of the nonmetal, and ends with "ic acid".
- Hydrogen chloride (HCl) is a compound before dissolving in water.
- Hydrochloric acid (HCl(aq)) is hydrogen chloride dissolved in water; a common stomach acid.
- Hydrosulfuric acid (Hâ‚‚S(aq)) is formed when hydrogen sulfide is dissolved in water.
- Binary acids contain two elements: hydrogen and a non-metal.
- Hydrogen fluoride (HF) is the compound without water.
- Hydrofluoric acid (HF(aq)) is the compound dissolved in water, making it an acid.
- Hydrogen selenide (Hâ‚‚Se) is the compound without water.
- Hydroselenic acid (Hâ‚‚Se(aq)) is the compound dissolved in water, making it an acid.
- Hydrogen nitride (H₃N) is the compound without water.
- Hydronitric acid (H₃N(aq)) is the compound dissolved in water, making it an acid.
Oxyacids
- Oxyacids contain hydrogen, oxygen, and at least one non-metal atom.
- Oxyacids are formed when a polyatomic ion containing oxygen (an oxyanion) is bonded to hydrogen and dissolved in water.
- Oxyacids are named according to the polyatomic ion's ending.
- If the polyatomic ion ends in "-ate", the acid name ends in "ic acid".
- If the polyatomic ion ends in "-ite", the acid name ends in "ous acid".
- Phosphoric acid (H₃PO₄(aq)) contains hydrogen, phosphorus, and oxygen dissolved in water.
- Sulfuric acid (Hâ‚‚SOâ‚„(aq)) contains hydrogen, sulfur, and oxygen dissolved in water.
- Carbonic acid (H₂CO₃(aq)) contains hydrogen, carbon, and oxygen dissolved in water.
- Oxyacids contain oxygen, hydrogen, and one or more nonmetals.
Naming Conventions
- "Hydro" prefix in an acid name indicates the absence of oxygen.
- Binary acids: "hydro" + non-metal root + "ic acid"
- Oxyacids: Non-metal root + "ic acid" or "ous acid"
- "-ate" polyatomic ion = "ic acid"
- "-ite" polyatomic ion = "ous acid"
Differences Between Binary Acids and Oxyacids
- Binary acids do not contain oxygen while oxyacids do.
- Binary acid names start with "hydro", oxyacid names do not.
- Binary acids always end in "ic acid", oxyacids end in "ic acid" or "ous acid".
- Hydrophosphoric acid (H₃P(aq)) contains only hydrogen and phosphorus dissolved in water.
Important Notes
- Not all compounds containing hydrogen are acids. Water (Hâ‚‚O) is not an acid.
- A compound must contain hydrogen as a cation and be dissolved in water to be classified as an acid.
- "(aq)" in a chemical formula indicates the compound is aqueous (dissolved in water).
- Memory aids:
- "Hydro no O" - If the acid name has "hydro", it means no oxygen is present.
- "I ate something icky for lunch" - If the polyatomic ion ends in "-ate", change it to "-ic acid" when determining the acid name.
- You can determine the formula of an acid by knowing the name of its polyatomic ion.
- Use the naming convention to determine the formula or name of an acid.
- If an acid does not contain oxygen, it is a binary acid. If it does contain oxygen, it is most likely an oxyacid. If there is a hydro prefix, the acid is an oxyacid.
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