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Acetate can be shown as C2H3O2- or CH3COO-.

Question

Acetate can be shown as C2H3O2- or CH3COO-.

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Solution

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Acetate is a monovalent ion (an ion with a -1 charge) that is formed by removing a hydrogen atom from acetic acid. It is often represented in one of two ways: C2H3O2- or CH3COO-.

  1. C2H3O2-: This representation shows the total number of each type of atom in the ion. There are two carbon atoms (C2), three hydrogen atoms (H3), and two oxygen atoms (O2). The minus sign (-) indicates that the ion has a negative charge.

  2. CH3COO-: This representation shows how the atoms are arranged in the ion. The CH3 group is a methyl group, and the COO- group is a carboxylate group. The minus sign (-) again indicates that the ion has a negative charge.

Both representations are correct and are used interchangeably. The choice between them often depends on the context and the preference of the person writing the chemical formula.

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