Naming And Recognizing Binary And Ternary Acids
ACID/BASE Nomenclature
Binary Acids
Rule: 1. Add the prefix hydro to main element 2. Add suffix "-ic"
Ternary Acids
Rule: 1. No Prefix hydro 2. Add the suffix "-ous" if the polyanion is an "-ite" 3. Add the suffix "-ic" if the polyanion is an "-ate"
Notes on hypo & perall hypo-"polyanion"s become hypo-main element-ous. E. G. Hypochlorite ion becomes hypochlorous acid.
all per-"polyanion"s become per-main element-ice. G. Perchlorate ion becomes Perchloric acid.
HOH or H2O = Hydrate
- 1.
What is the name of the acid form of a Fluorine ion?
- A.
Hydrofluoric acid
- B.
Fluoric acid
- C.
Difluoric acid
- D.
Fluorine
Correct Answer
A. Hydrofluoric acidExplanation
The acid form of a Fluorine ion is called Hydrofluoric acid. This is because when Fluorine gains a hydrogen ion, it forms the compound Hydrofluoric acid.Rate this question:
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- 2.
When making a binary acid, one must add the prefix hydro to the main element, then add the suffix "-ous".
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
When making a binary acid, one must add the prefix hydro to the main element, then add the suffix "-ic". (Not "-ous", as stated in the question.Rate this question:
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- 3.
When making phosphoric acid, what is the equation?
- A.
H3PO4 (aq)
- B.
HPO4 (aq)
- C.
PO4 (aq)
Correct Answer
A. H3PO4 (aq)Explanation
Phosphoric acid is a ternary acid.Rate this question:
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- 4.
When naming a ternary acid, one must use the following rules: (Check all that apply)
- A.
No Prefix of Hydro
- B.
If the polyanion is "-ate", then it is "-ous".
- C.
If the polyanion is "ate", then it is "-ic".
- D.
If the polyanion is "-ite", then it is "-ous".
- E.
If the polyanion is "-ite", then it is "-ic".
Correct Answer(s)
A. No Prefix of Hydro
C. If the polyanion is "ate", then it is "-ic".
D. If the polyanion is "-ite", then it is "-ous".Explanation
When naming a ternary acid, the following rules apply:
1. No prefix of "hydro" is used.
2. If the polyanion ends with "-ate", then the acid name ends with "-ic".
3. If the polyanion ends with "-ite", then the acid name ends with "-ous".
Therefore, the correct answers are: No Prefix of Hydro, If the polyanion is "ate", then it is "-ic", If the polyanion is "-ite", then it is "-ous".Rate this question:
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- 5.
Make this poly-anion into an acid.Chlorite
- A.
Hydrochlorous Acid
- B.
Chlorous Acid
- C.
Hydrochloric acid
- D.
Chloric acid
Correct Answer
B. Chlorous AcidExplanation
Chlorous acid is the correct answer because it is formed by adding hydrogen ions to the poly-anion chlorite. The suffix "-ous" indicates a lower oxidation state of chlorine, which is the case in chlorite. Therefore, when hydrogen ions are added to chlorite, it forms chlorous acid. Hydrochlorous acid, hydrochloric acid, and chloric acid are not the correct answers because they do not accurately represent the addition of hydrogen ions to the chlorite poly-anion.Rate this question:
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- 6.
What is the name of this acid?HClO4
- A.
Hypochlorous acid
- B.
Chlorous Acid
- C.
Perchloric acid
- D.
Chloric Acid
- E.
Perchlorous acid
- F.
Hypochloric acid
Correct Answer
C. Perchloric acidExplanation
Perchloric acid is the correct answer because the chemical formula HClO4 corresponds to perchloric acid. Perchloric acid is a strong acid that is highly corrosive and can be dangerous if not handled properly. It is commonly used in laboratories for various purposes, such as in the production of pharmaceuticals and as a reagent in analytical chemistry.Rate this question:
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Mar 20, 2023Quiz Edited by
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Nov 26, 2010Quiz Created by
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