QQuestionChemistry
QuestionChemistry
Fill in the name and empirical formula of each ionic compound that could be formed from the ions in this table:
some ionic compounds
cation anion empirical formula name of compound
K+ IO−4 KIO^4
K+ IO−3 KIO^3
K+ IO− KIO
K+ IO−2 KIO^2"
10 months agoReport content
Answer
Full Solution Locked
Sign in to view the complete step-by-step solution and unlock all study resources.
Step 1:: Identify the cation and anion in each ionic compound.
In an ionic compound, the cation is the positively charged ion, and the anion is the negatively charged ion. From the table, we can see that the cation is K+ in all cases. The anions are IO−4, IO−3, IO−, and IO−2.
Step 2:: Write the empirical formula for each ionic compound.
The empirical formula of an ionic compound is the chemical formula that shows the simplest, most reduced ratio of atoms in a compound. Since we know the charge of each ion, we can determine the number of each atom in the empirical formula. For KIO^4: - K+ has a charge of + 1 - IO−4 has a charge of - 4 Since the charges must balance, we need four K+ ions for every IO−4 ion, giving us the empirical formula KIO^4. For KIO^3: - K+ has a charge of + 1 - IO−3 has a charge of - 3 Since the charges must balance, we need three K+ ions for every IO−3 ion, giving us the empirical formula KIO^3. For KIO: - K+ has a charge of + 1 - IO− has a charge of - 1 Since the charges must balance, we need one K+ ion for every IO− ion, giving us the empirical formula KIO. For KIO^2: - K+ has a charge of + 1 - IO−2 has a charge of - 2 Since the charges must balance, we need two K+ ions for every IO−2 ion, giving us the empirical formula KIO^2.
Step 3:: Name each ionic compound.
The name of an ionic compound consists of the name of the cation followed by the name of the anion, with the anion name modified to end in "-ide." The charge on the anion is indicated by adding a Roman numeral in parentheses after the anion name. For KIO^4: - The cation is K+, which is potassium - The anion is IO−4, which is iodate The name of the compound is potassium iodate. For KIO^3: - The cation is K+, which is potassium - The anion is IO−3, which is iodite The name of the compound is potassium iodite. For KIO: - The cation is K+, which is potassium - The anion is IO−, which is iodide The name of the compound is potassium iodide. For KIO^2: - The cation is K+, which is potassium - The anion is IO−2, which is iodine(2$) The name of the compound is potassium iodine(2$).
Final Answer
The ionic compounds and their names and empirical formulas are: | Cation | Anion | Empirical Formula | Name of Compound | | --- | --- | --- | --- | | K+ | IO−4 | KIO^4 | Potassium iodate | | K+ | IO−3 | KIO^3 | Potassium iodite | | K+ | IO− | KIO | Potassium iodide | | K+ | IO−2 | KIO^2 | Potassium iodine(2$) |
Need Help with Homework?
Stuck on a difficult problem? We've got you covered:
- Post your question or upload an image
- Get instant step-by-step solutions
- Learn from our AI and community of students