What is the name for the $C _2 H _3 O _2^{-}$ ion?
A. carboxyhydrate
B. acetate
C. carbohydroxide
Answer (2)
Identify the ion formula: Recognize the formula C 2 H 3 O 2 − from the table.
Determine the ion name: Match the formula to its corresponding name.
Select the correct option: Choose 'acetate' as the correct name for the ion.
State the final answer: The name for the C 2 H 3 O 2 − ion is a ce t a t e .
Explanation
Identify the Problem We are given a table of ions and their formulas, and we need to identify the name of the ion with the formula C 2 H 3 O 2 − . The options are carboxyhydrate, acetate, and carbohydroxide.
Determine the Ion Name By referring to common ion names, the ion C 2 H 3 O 2 − is known as acetate.
Final Answer Therefore, the correct name for the C 2 H 3 O 2 − ion is acetate.
Examples
Understanding ions and their formulas is crucial in chemistry. For example, in vinegar, acetic acid ( C H 3 COO H ) dissociates to form acetate ions ( C H 3 CO O − or C 2 H 3 O 2 − ) and hydrogen ions ( H + ). The concentration of these ions determines the acidity of the vinegar. Knowing the correct names and formulas of ions helps in understanding chemical reactions and properties of different substances.
The C 2 H 3 O 2 − ion is called acetate. Therefore, the correct multiple-choice option is B. acetate.
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