Problem: Write the formula for copper(II) sulfate pentahydrate.a. Cu2SO3•H5b. (CuSO4)5c. CuS•5H2Od. Cu2S•H2Oe. CuSO4•5H2O

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We’re being asked to give the chemical formula of copper(II) sulfate pentahydrate.


The rules for naming polyatomic ionic compounds are as follows:

1. The metal keeps its name and is named and written first.

– For transition metals, we use Roman numerals to denote its charge.

2. Name the polyatomic ion as you would normally.

3. Hydrates → H2O, the prefix will determine the coefficient. Separated by a dot form the main molecule.


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Problem Details

Write the formula for copper(II) sulfate pentahydrate.

a. Cu2SO3•H5

b. (CuSO4)5

c. CuS•5H2O

d. Cu2S•H2O

e. CuSO4•5H2O

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Our tutors have indicated that to solve this problem you will need to apply the Naming Ionic Hydrates concept. You can view video lessons to learn Naming Ionic Hydrates. Or if you need more Naming Ionic Hydrates practice, you can also practice Naming Ionic Hydrates practice problems.