Select The Correct Answer.What Is The Formula For The Compound Iron (III) Sulfate?A. $FeSO_4$ B. $Fe_3(SO_4)_2$ C. $Fe_2(SO_4)_3$ D. $Fe_2(SO_2)_4$ E. $Fe_3(SO_4)_5$

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Iron (III) sulfate is a chemical compound composed of iron and sulfate ions. To determine the correct formula for this compound, we need to understand the rules of nomenclature and the properties of iron and sulfate ions.

The Rules of Nomenclature

In chemistry, the rules of nomenclature dictate how to name and write the formulas for chemical compounds. For ionic compounds, the name of the cation (positively charged ion) is followed by the name of the anion (negatively charged ion). The charge on the cation is indicated by a Roman numeral in parentheses.

Iron (III) Sulfate: A Closer Look

Iron (III) sulfate is composed of iron (III) ions and sulfate ions. The iron (III) ion has a charge of +3, while the sulfate ion has a charge of -2. To balance the charges, we need to determine the ratio of iron (III) ions to sulfate ions.

The Formula for Iron (III) Sulfate

The formula for iron (III) sulfate can be determined by balancing the charges on the iron (III) and sulfate ions. Since the iron (III) ion has a charge of +3 and the sulfate ion has a charge of -2, we need to find the smallest whole-number ratio of iron (III) ions to sulfate ions that will balance the charges.

Option Analysis

Let's analyze each option to determine the correct formula for iron (III) sulfate:

  • Option A: FeSO4FeSO_4 - This formula suggests that there is one iron (III) ion and one sulfate ion. However, this would result in a net charge of +1, which is not balanced.
  • Option B: Fe3(SO4)2Fe_3(SO_4)_2 - This formula suggests that there are three iron (III) ions and two sulfate ions. However, this would result in a net charge of +1, which is not balanced.
  • Option C: Fe2(SO4)3Fe_2(SO_4)_3 - This formula suggests that there are two iron (III) ions and three sulfate ions. Since the iron (III) ion has a charge of +3 and the sulfate ion has a charge of -2, this ratio would result in a net charge of 0, which is balanced.
  • Option D: Fe2(SO2)4Fe_2(SO_2)_4 - This formula is not a valid representation of iron (III) sulfate, as the sulfate ion has a charge of -2, not -1.
  • Option E: Fe3(SO4)5Fe_3(SO_4)_5 - This formula suggests that there are three iron (III) ions and five sulfate ions. However, this would result in a net charge of +1, which is not balanced.

Conclusion

Based on the analysis of each option, the correct formula for iron (III) sulfate is Fe2(SO4)3Fe_2(SO_4)_3. This formula balances the charges on the iron (III) and sulfate ions, resulting in a net charge of 0.

Key Takeaways

  • The rules of nomenclature dictate how to name and write the formulas for chemical compounds.
  • Iron (III) sulfate is composed of iron (III) ions and sulfate ions.
  • The formula for iron (III) sulfate can be determined by balancing the charges on the iron (III) and sulfate ions.
  • The correct formula for iron (III) sulfate is Fe2(SO4)3Fe_2(SO_4)_3.
    Frequently Asked Questions About Iron (III) Sulfate =====================================================

Iron (III) sulfate is a chemical compound composed of iron and sulfate ions. In this article, we will answer some of the most frequently asked questions about iron (III) sulfate.

Q: What is the chemical formula for iron (III) sulfate?

A: The chemical formula for iron (III) sulfate is Fe2(SO4)3Fe_2(SO_4)_3. This formula indicates that there are two iron (III) ions and three sulfate ions in the compound.

Q: What is the charge on the iron (III) ion?

A: The charge on the iron (III) ion is +3. This means that the iron (III) ion has a positive charge of three units.

Q: What is the charge on the sulfate ion?

A: The charge on the sulfate ion is -2. This means that the sulfate ion has a negative charge of two units.

Q: How do you balance the charges on the iron (III) and sulfate ions?

A: To balance the charges on the iron (III) and sulfate ions, you need to find the smallest whole-number ratio of iron (III) ions to sulfate ions that will result in a net charge of 0. In the case of iron (III) sulfate, the ratio of two iron (III) ions to three sulfate ions balances the charges.

Q: What are some common uses of iron (III) sulfate?

A: Iron (III) sulfate is used in a variety of applications, including:

  • Water treatment: Iron (III) sulfate is used to remove iron and other impurities from water.
  • Pigment production: Iron (III) sulfate is used to produce pigments for use in paints and other coatings.
  • Pharmaceutical applications: Iron (III) sulfate is used in some pharmaceutical applications, such as the production of iron supplements.

Q: Is iron (III) sulfate toxic?

A: Iron (III) sulfate can be toxic if ingested in large quantities. However, it is generally considered to be non-toxic in small amounts. If you are handling iron (III) sulfate, it is essential to wear protective gloves and eyewear and to follow proper safety protocols.

Q: How do you store iron (III) sulfate?

A: Iron (III) sulfate should be stored in a cool, dry place away from direct sunlight. It should also be kept away from children and pets.

Q: Can iron (III) sulfate be used as a fertilizer?

A: Iron (III) sulfate can be used as a fertilizer, but it is not the most effective option. Iron is an essential micronutrient for plants, but iron (III) sulfate can be difficult to absorb by plants. Other forms of iron, such as iron EDTA, may be more effective as fertilizers.

Conclusion

Iron (III) sulfate is a chemical compound composed of iron and sulfate ions. In this article, we have answered some of the most frequently asked questions about iron (III) sulfate, including its chemical formula, charge on the iron (III) and sulfate ions, and common uses. We hope this information has been helpful in understanding iron (III) sulfate.

Key Takeaways

  • The chemical formula for iron (III) sulfate is Fe2(SO4)3Fe_2(SO_4)_3.
  • The charge on the iron (III) ion is +3, and the charge on the sulfate ion is -2.
  • Iron (III) sulfate can be used in a variety of applications, including water treatment, pigment production, and pharmaceutical applications.
  • Iron (III) sulfate can be toxic if ingested in large quantities, but it is generally considered to be non-toxic in small amounts.
  • Iron (III) sulfate should be stored in a cool, dry place away from direct sunlight.