In aqueous solution, what is the correct name for the acid with formula $H_1{C}_2{H}_3{O}_2$?

• A. Acetic acid
• B. Acetate acid
• C. Hydroacetic acid
• D. Acetous acid

Answer: (A)

Verified step by step guidance

1. Identify the chemical formula given: H1C2H3O2, which can be rewritten as HC2H3O2 or more commonly as CH3COOH.
2. Recognize that this formula corresponds to a common acid found in aqueous solution, known for its sour taste and use in vinegar.
3. Recall the naming conventions for acids: when the acid contains the carboxyl group (-COOH), it is typically named as a carboxylic acid with the suffix '-ic acid'.
4. Match the formula CH3COOH to its common name, which is 'acetic acid', derived from 'acet-' indicating the two-carbon structure and '-ic acid' indicating the acid functional group.
5. Confirm that the other options (Acetate acid, Hydroacetic acid, Acetous acid) are incorrect or non-standard names for this compound.