The difference between the representations CuSO 4(s), CuSO 4 •5H2O (s), and CuSO4 (aq) lies in the state of the chemical compound and its physical form.
1. CuSO 4(s): This representation indicates that copper sulfate is in a solid state at room temperature and pressure. The compound exists as individual solid particles.
2. CuSO 4 •5H2O (s): This representation indicates that copper sulfate is in a hydrated form, meaning it has water molecules incorporated into its crystal structure. The "•5H2O" indicates that there are five water molecules associated with each copper sulfate unit. This form of copper sulfate is commonly known as "copper sulfate pentahydrate."
3. CuSO4 (aq): This representation indicates that CuSO4 is dissolved in water, forming an aqueous solution. In this form, the copper sulfate ions (Cu2+ and SO4 2-) are separated and surrounded by water molecules, indicating that it is completely dissolved in water.
To summarize, CuSO 4(s) represents copper sulfate in its solid, anhydrous form, CuSO 4 •5H2O (s) represents copper sulfate in its hydrated form with five water molecules, and CuSO4 (aq) represents copper sulfate dissolved in water as an aqueous solution.
Chemists use symbols when writing chemical equations and formulas. Explain the difference between the following representation of the same chemical CuSO 4(s), CuSO 4 •5H2O (s), CuSO4 (aq)
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