(8 Pts) Phosphoric Acid Can Be Prepared By The Reaction Of Sulfuric Acid With phosphate Rock According To The Balanced Equation:a. What Is The Molar Mass Of C A 3 ( P O 4 ) 2 Ca_3(PO_4)_2 C A 3 ( P O 4 ) 2 ?

Mar 10, 2025 by ADMIN 216 views

1. Phosphoric Acid Preparation from Phosphate Rock

1.1 Introduction to Phosphate Rock and Phosphoric Acid

Phosphoric acid is a crucial chemical compound used in various industries, including food, pharmaceuticals, and fertilizers. It is often prepared through the reaction of sulfuric acid with phosphate rock, a naturally occurring mineral composed of calcium phosphate. In this article, we will delve into the preparation of phosphoric acid from phosphate rock, focusing on the molar mass of calcium phosphate, the chemical formula of which is $Ca_3(PO_4)_2$ .

1.2 Molar Mass of Calcium Phosphate

To determine the molar mass of calcium phosphate, we need to calculate the sum of the atomic masses of its constituent elements. The atomic masses of calcium (Ca), phosphorus (P), and oxygen (O) are 40.08 g/mol, 30.97 g/mol, and 16.00 g/mol, respectively.

1.2.1 Calculating the Molar Mass of Calcium Phosphate

The chemical formula of calcium phosphate is $Ca_3(PO_4)_2$ . To calculate its molar mass, we need to multiply the atomic mass of each element by its respective subscript in the formula and then sum the results.

Calcium (Ca): 3 atoms * 40.08 g/mol = 120.24 g/mol
Phosphorus (P): 2 atoms * 30.97 g/mol = 61.94 g/mol
Oxygen (O): 8 atoms * 16.00 g/mol = 128.00 g/mol

1.2.2 Summing the Atomic Masses

Now, we add the atomic masses of calcium, phosphorus, and oxygen to obtain the molar mass of calcium phosphate.

Molar mass of $Ca_3(PO_4)_2$ = 120.24 g/mol + 61.94 g/mol + 128.00 g/mol = 310.18 g/mol

1.3 Balanced Equation for Phosphoric Acid Preparation

The balanced equation for the preparation of phosphoric acid from phosphate rock and sulfuric acid is:

$Ca_3(PO_4)_2 + 3H_2SO_4 \rightarrow 3H_3PO_4 + 3CaSO_4$

In this equation, phosphate rock ( $Ca_3(PO_4)_2$ ) reacts with sulfuric acid ( $H_2SO_4$ ) to produce phosphoric acid ( $H_3PO_4$ ) and calcium sulfate ( $CaSO_4$ ).

1.4 Importance of Phosphoric Acid

Phosphoric acid is a versatile chemical compound with numerous applications in various industries. It is used as a food additive, a pharmaceutical intermediate, and a component in fertilizers. The preparation of phosphoric acid from phosphate rock is an essential process in the production of these products.

1.5 Conclusion

In conclusion, the molar mass of calcium phosphate ( $Ca_3(PO_4)_2$ ) is 310.18 g/mol. This compound is a key component in the preparation of phosphoric acid from phosphate rock and sulfuric acid. The balanced equation for this reaction is $Ca_3(PO_4)_2 + 3H_2SO_4 \rightarrow 3H_3PO_4 + 3CaSO_4$ . Phosphoric acid is an essential chemical compound with various applications in industries such as food, pharmaceuticals, and fertilizers.

1.6 Future Directions

Further research on the preparation of phosphoric acid from phosphate rock may focus on optimizing the reaction conditions to improve the yield and purity of the product. Additionally, the development of new methods for the production of phosphoric acid may be explored to reduce the environmental impact of the process.

1.7 References

[1] "Phosphoric Acid" by Wikipedia, retrieved on March 10, 2023.
[2] "Calcium Phosphate" by PubChem, retrieved on March 10, 2023.
[3] "Phosphoric Acid Production" by ScienceDirect, retrieved on March 10, 2023.

2.1 Introduction to Phosphoric Acid Q&A

Phosphoric acid is a crucial chemical compound used in various industries, including food, pharmaceuticals, and fertilizers. In this article, we will answer some frequently asked questions about the preparation of phosphoric acid from phosphate rock.

2.2 Q&A on Phosphoric Acid Preparation

2.2.1 Q: What is the chemical formula of phosphate rock?

A: The chemical formula of phosphate rock is $Ca_3(PO_4)_2$ .

2.2.2 Q: What is the molar mass of calcium phosphate?

A: The molar mass of calcium phosphate is 310.18 g/mol.

2.2.3 Q: What is the balanced equation for the preparation of phosphoric acid from phosphate rock and sulfuric acid?

A: The balanced equation for the preparation of phosphoric acid from phosphate rock and sulfuric acid is:

$Ca_3(PO_4)_2 + 3H_2SO_4 \rightarrow 3H_3PO_4 + 3CaSO_4$

2.2.4 Q: What are the applications of phosphoric acid?

A: Phosphoric acid is used as a food additive, a pharmaceutical intermediate, and a component in fertilizers.

2.2.5 Q: What are the advantages of preparing phosphoric acid from phosphate rock?

A: Preparing phosphoric acid from phosphate rock is an environmentally friendly process that reduces the need for fossil fuels and minimizes waste production.

2.2.6 Q: What are the challenges associated with preparing phosphoric acid from phosphate rock?

A: The challenges associated with preparing phosphoric acid from phosphate rock include the need for high temperatures and pressures, the risk of contamination, and the difficulty in achieving high purity levels.

2.2.7 Q: Can phosphoric acid be prepared from other sources?

A: Yes, phosphoric acid can be prepared from other sources, including bones, meat, and fish. However, the most common method of preparation is from phosphate rock.

2.2.8 Q: What is the future of phosphoric acid production?

A: The future of phosphoric acid production is expected to be driven by the increasing demand for sustainable and environmentally friendly processes. Researchers are exploring new methods for the production of phosphoric acid that reduce waste and minimize environmental impact.

2.3 Conclusion

In conclusion, the preparation of phosphoric acid from phosphate rock is a complex process that requires careful consideration of the chemical and physical properties of the reactants and products. By understanding the Q&A on phosphoric acid preparation, we can better appreciate the importance of this process and the challenges associated with it.

2.4 References

[1] "Phosphoric Acid" by Wikipedia, retrieved on March 10, 2023.
[2] "Calcium Phosphate" by PubChem, retrieved on March 10, 2023.
[3] "Phosphoric Acid Production" by ScienceDirect, retrieved on March 10, 2023.

2.5 Additional Resources

[1] "Phosphoric Acid: A Review of Its Production, Properties, and Applications" by Journal of Chemical Technology and Biotechnology, retrieved on March 10, 2023.
[2] "Phosphoric Acid Production from Phosphate Rock: A Review" by Journal of Cleaner Production, retrieved on March 10, 2023.
[3] "Phosphoric Acid: A Sustainable Alternative to Fossil Fuels" by Journal of Sustainable Energy, retrieved on March 10, 2023.