Write The Formula For The Following Combinations:(a) F E 3 + Fe^{3+} F E 3 + And C O 3 2 − CO_3^{2-} C O 3 2 − ​ (b) B A 2 + Ba^{2+} B A 2 + And O H − OH^- O H − (c) N H 4 + NH_4^{+} N H 4 + ​ And S O 3 2 − SO_3^{2-} S O 3 2 − ​

Introduction

Chemical formulas are a crucial aspect of chemistry, as they provide a concise and standardized way to represent the composition of chemical compounds. In this article, we will explore the process of writing chemical formulas for various combinations of ions. We will focus on three specific combinations: (a) $Fe^{3+}$ and $CO_3^{2-}$, (b) $Ba^{2+}$ and $OH^-$, and (c) $NH_4^{+}$ and $SO_3^{2-}$. By understanding how to write chemical formulas for these combinations, we can gain a deeper appreciation for the fundamental principles of chemistry.

Writing Chemical Formulas: A Step-by-Step Approach

To write a chemical formula, we need to follow a simple step-by-step approach. Here are the key steps:

1. Identify the ions involved: The first step in writing a chemical formula is to identify the ions involved in the reaction. In this case, we have three combinations of ions: (a) $Fe^{3+}$ and $CO_3^{2-}$, (b) $Ba^{2+}$ and $OH^-$, and (c) $NH_4^{+}$ and $SO_3^{2-}$.
2. Determine the charge of each ion: The next step is to determine the charge of each ion. In this case, we have:
   • $Fe^{3+}$: The charge on the iron ion is +3.
   • $CO_3^{2-}$: The charge on the carbonate ion is -2.
   • $Ba^{2+}$: The charge on the barium ion is +2.
   • $OH^-$: The charge on the hydroxide ion is -1.
   • $NH_4^{+}$: The charge on the ammonium ion is +1.
   • $SO_3^{2-}$: The charge on the sulfite ion is -2.
3. Balance the charges: The final step is to balance the charges on the ions. To do this, we need to ensure that the total positive charge on the ions is equal to the total negative charge.

Writing the Formula for (a) $Fe^{3+}$ and $CO_3^{2-}$

To write the formula for this combination, we need to balance the charges on the ions. The iron ion has a charge of +3, while the carbonate ion has a charge of -2. To balance the charges, we need to multiply the iron ion by 1 and the carbonate ion by 1.5. However, we cannot have a fraction of an ion, so we need to multiply both ions by 3 to eliminate the fraction. The resulting formula is:

$Fe_3(CO_3)_2$

Writing the Formula for (b) $Ba^{2+}$ and $OH^-$

To write the formula for this combination, we need to balance the charges on the ions. The barium ion has a charge of +2, while the hydroxide ion has a charge of -1. To balance the charges, we need to multiply the barium ion by 2 and the hydroxide ion by 2. The resulting formula is:

$Ba(OH)_2$

Writing the Formula for (c) $NH_4^{+}$ and $SO_3^{2-}$

To write the formula for this combination, we need to balance the charges on the ions. The ammonium ion has a charge of +1, while the sulfite ion has a charge of -2. To balance the charges, we need to multiply the ammonium ion by 2 and the sulfite ion by 1. The resulting formula is:

$(NH_4)_2SO_3$

Conclusion

Writing chemical formulas is a crucial aspect of chemistry, as it provides a concise and standardized way to represent the composition of chemical compounds. By following a simple step-by-step approach, we can write chemical formulas for various combinations of ions. In this article, we explored the process of writing chemical formulas for three specific combinations: (a) $Fe^{3+}$ and $CO_3^{2-}$, (b) $Ba^{2+}$ and $OH^-$, and (c) $NH_4^{+}$ and $SO_3^{2-}$. By understanding how to write chemical formulas for these combinations, we can gain a deeper appreciation for the fundamental principles of chemistry.

Key Takeaways

• To write a chemical formula, we need to identify the ions involved, determine the charge of each ion, and balance the charges.
• The charge on an ion is determined by the number of protons in its nucleus.
• To balance the charges on the ions, we need to multiply the ions by a factor that eliminates the fraction.
• The resulting formula should have a whole number ratio of ions.

Common Mistakes to Avoid

• Failing to balance the charges on the ions.
• Using fractions of ions in the formula.
• Not following the correct order of operations when writing the formula.

Real-World Applications

• Writing chemical formulas is a crucial aspect of chemistry, as it provides a concise and standardized way to represent the composition of chemical compounds.
• Chemical formulas are used in a wide range of applications, including chemistry, biology, physics, and engineering.
• Understanding how to write chemical formulas is essential for anyone working in a field that involves chemistry.

Future Directions

• As our understanding of chemistry continues to evolve, we will need to develop new and more sophisticated methods for writing chemical formulas.
• The development of new technologies, such as quantum computing and artificial intelligence, will likely play a major role in the future of chemistry.
• Understanding how to write chemical formulas will continue to be an essential skill for anyone working in a field that involves chemistry.
  

Introduction

Chemical formulas are a crucial aspect of chemistry, as they provide a concise and standardized way to represent the composition of chemical compounds. In our previous article, we explored the process of writing chemical formulas for various combinations of ions. In this article, we will answer some of the most frequently asked questions about chemical formulas.

Q: What is a chemical formula?

A: A chemical formula is a way to represent the composition of a chemical compound using a combination of letters and numbers. It shows the number and type of atoms present in the compound.

Q: How do I write a chemical formula?

A: To write a chemical formula, you need to identify the ions involved, determine the charge of each ion, and balance the charges. You can use the following steps:

1. Identify the ions involved.
2. Determine the charge of each ion.
3. Balance the charges by multiplying the ions by a factor that eliminates the fraction.

Q: What is the difference between a chemical formula and a molecular formula?

A: A chemical formula shows the number and type of atoms present in a compound, while a molecular formula shows the actual arrangement of atoms in a molecule.

Q: How do I determine the charge of an ion?

A: The charge of an ion is determined by the number of protons in its nucleus. You can use the following steps:

1. Determine the number of protons in the nucleus of the atom.
2. Determine the number of electrons in the atom.
3. The charge of the ion is equal to the difference between the number of protons and the number of electrons.

Q: What is the significance of chemical formulas in chemistry?

A: Chemical formulas are a crucial aspect of chemistry, as they provide a concise and standardized way to represent the composition of chemical compounds. They are used in a wide range of applications, including chemistry, biology, physics, and engineering.

Q: Can I use fractions in a chemical formula?

A: No, you cannot use fractions in a chemical formula. Chemical formulas must have a whole number ratio of ions.

Q: How do I balance the charges on the ions?

A: To balance the charges on the ions, you need to multiply the ions by a factor that eliminates the fraction. You can use the following steps:

1. Determine the charge of each ion.
2. Multiply the ions by a factor that eliminates the fraction.
3. The resulting formula should have a whole number ratio of ions.

Q: What is the difference between a cation and an anion?

A: A cation is a positively charged ion, while an anion is a negatively charged ion.

Q: How do I determine the type of ion (cation or anion)?

A: You can determine the type of ion by looking at the charge of the ion. If the ion has a positive charge, it is a cation. If the ion has a negative charge, it is an anion.

Q: Can I use chemical formulas to predict the properties of a compound?

A: Yes, you can use chemical formulas to predict the properties of a compound. By analyzing the chemical formula, you can determine the number and type of atoms present in the compound, which can help you predict its properties.

Q: How do I use chemical formulas to predict the properties of a compound?

A: You can use chemical formulas to predict the properties of a compound by analyzing the following factors:

1. The number and type of atoms present in the compound.
2. The arrangement of atoms in the molecule.
3. The charge of the ions present in the compound.

Conclusion

Chemical formulas are a crucial aspect of chemistry, as they provide a concise and standardized way to represent the composition of chemical compounds. By understanding how to write chemical formulas and using them to predict the properties of a compound, you can gain a deeper appreciation for the fundamental principles of chemistry.

Key Takeaways

• Chemical formulas show the number and type of atoms present in a compound.
• Chemical formulas must have a whole number ratio of ions.
• Cations are positively charged ions, while anions are negatively charged ions.
• Chemical formulas can be used to predict the properties of a compound.

Common Mistakes to Avoid

• Failing to balance the charges on the ions.
• Using fractions in a chemical formula.
• Not following the correct order of operations when writing the formula.

Real-World Applications

• Chemical formulas are used in a wide range of applications, including chemistry, biology, physics, and engineering.
• Understanding how to write chemical formulas is essential for anyone working in a field that involves chemistry.
• Chemical formulas can be used to predict the properties of a compound, which can help you make informed decisions in a variety of fields.