Multiple Choice
What is the correct chemical formula for hydrophosphoric acid?
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3. Chemical Reactions
Naming Acids
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What is the correct name for the acid with the formula HC2H3O2?
A
Citric acid
B
Formic acid
C
Oxalic acid
D
Acetic acid
Verified step by step guidance1
Identify the molecular formula given: HC2H3O2. This can also be written as CH3COOH, which is a common way to represent the acid's structure.
Recognize that this formula corresponds to a carboxylic acid because it contains the -COOH functional group, which is characteristic of acids in organic chemistry.
Recall the common names of acids with similar formulas: Citric acid (C6H8O7), Formic acid (HCOOH), Oxalic acid (C2H2O4), and Acetic acid (CH3COOH).
Compare the given formula HC2H3O2 to these known acids. It matches the formula for Acetic acid, which is the main component of vinegar and has the formula CH3COOH.
Conclude that the correct name for the acid with the formula HC2H3O2 is Acetic acid.
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