How do you write the chemical formula for ammonium acetate and ammonium hydrogen sulfate?
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ammonium ion NH4+
acetate ion When part of a salt, the formula of the acetate ion is written as CH3CO2−, C2H3O2−, or CH3COO−. Chemists abbreviate acetate as OAc− or, less commonly, AcO−. Thus, HOAc is the abbreviation for acetic acid, NaOAc for sodium acetate, and EtOAc for ethyl acetate. You can write ammonium acetate as NH4OAc, NH4C2H4O2, NH4CH3COO (which is my favorite)
(NH4)HSO4 ammonium hydrogen sulfate, or ammonium bisulfate
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To write the chemical formulas for ammonium acetate and ammonium hydrogen sulfate, you need to know the symbols for the elements involved and their respective charges. Here's how you can determine the formulas:
1. Ammonium Acetate:
- Ammonium, represented by the symbol NH₄, is a cation with a charge of +1.
- Acetate, represented by C₂H₃O₂, is an anion with a charge of -1.
To write the formula, the charges must balance: +1 from ammonium cancels out -1 from acetate. So, the chemical formula for ammonium acetate is: (NH₄)C₂H₃O₂.
2. Ammonium Hydrogen Sulfate:
- Ammonium, represented by the symbol NH₄, is a cation with a charge of +1.
- Hydrogen sulfate, represented by HSO₄, is an anion with a charge of -1.
Again, the charges must balance. To achieve that, we need two ammonium ions to cancel out the charge of the hydrogen sulfate anion. So, the chemical formula for ammonium hydrogen sulfate is: (NH₄)₂HSO₄.
Remember to use subscripts to indicate the number of atoms in the formula and parentheses when necessary to group atoms or ions together.