Multiple Choice
Which question should be asked prior to naming an acid?
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3. Chemical Reactions
Naming Acids
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Which of the following is the correct chemical formula for chloric acid?
A
HClO_2
B
HClO_4
C
HCl
D
HClO_3
Verified step by step guidance1
Understand that chloric acid is an oxyacid of chlorine, meaning it contains hydrogen, oxygen, and chlorine atoms.
Recall the naming convention for chlorine oxyacids: the suffix '-ic' corresponds to the oxyacid with the higher number of oxygen atoms compared to '-ous' acids.
Identify the common chlorine oxyacids and their formulas: hypochlorous acid (HClO), chlorous acid (HClO_2), chloric acid (HClO_3), and perchloric acid (HClO_4).
Match the name 'chloric acid' to its correct formula, which is HClO_3, based on the standard nomenclature of oxyacids.
Verify that the other options (HClO_2 and HClO_4) correspond to chlorous acid and perchloric acid respectively, and HCl is hydrochloric acid, not an oxyacid.
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