Calculating Molar Mass of Phenol

Oct 13, 2025 by wbrum.org 48 views

Understanding Phenol and Molar Mass

Phenol, also known as carbolic acid, is a chemical compound with the molecular formula C6H5OH. It is a colorless, crystalline solid with a distinct odor. The molar mass of phenol is the sum of the atomic masses of its constituent atoms. To calculate the molar mass of phenol, we need to add the atomic masses of 6 carbon atoms, 5 hydrogen atoms, and 1 oxygen atom.

Calculating Molar Mass of Phenol

The atomic masses of the elements are:

Carbon (C): 12.01 g/mol
Hydrogen (H): 1.008 g/mol
Oxygen (O): 16.00 g/mol

The molar mass of phenol can be calculated as follows: Molar mass of phenol = (6 x 12.01 g/mol) + (5 x 1.008 g/mol) + (1 x 16.00 g/mol) Molar mass of phenol = 72.06 g/mol + 5.04 g/mol + 16.00 g/mol Molar mass of phenol = 93.10 g/mol

Calculating Grams of Phenol from Moles

Now that we know the molar mass of phenol, we can calculate the number of grams of phenol contained in 3.50 mol of phenol. To do this, we need to multiply the number of moles by the molar mass.

Grams of phenol = number of moles x molar mass Grams of phenol = 3.50 mol x 93.10 g/mol Grams of phenol = 325.35 g

Comparing Calculated Value with Options

Comparing the calculated value of 325.35 g with the given options, we can see that none of the options match our calculated value. However, we can see that option A is close to our calculated value.

Conclusion

In conclusion, the number of grams of phenol contained in 3.50 mol of phenol is 325.35 g. This value is not among the given options, but option A is close to our calculated value.

Answer

The correct answer is not among the given options. However, if we had to choose from the given options, option A would be the closest.

Additional Information

Phenol is a widely used chemical compound in various industries, including pharmaceuticals, dyes, and plastics. It is also used as a disinfectant and a preservative. The molar mass of phenol is an important property that is used in various calculations, including stoichiometry and chemical reactions.

References

CRC Handbook of Chemistry and Physics, 97th Edition
National Institute of Standards and Technology (NIST) Chemistry WebBook

Understanding Phenol and Molar Mass
Calculating Molar Mass of Phenol
Calculating Grams of Phenol from Moles
Comparing Calculated Value with Options
Conclusion
Answer
Additional Information
References
Table of Contents

Understanding Phenol and Molar Mass

Q: What is the molar mass of phenol?

A: The molar mass of phenol is 93.10 g/mol.

Calculating Molar Mass of Phenol

The atomic masses of the elements are:

Carbon (C): 12.01 g/mol
Hydrogen (H): 1.008 g/mol
Oxygen (O): 16.00 g/mol

Q: How do I calculate the molar mass of phenol?

A: To calculate the molar mass of phenol, you need to add the atomic masses of 6 carbon atoms, 5 hydrogen atoms, and 1 oxygen atom.

Calculating Grams of Phenol from Moles

Now that we know the molar mass of phenol, we can calculate the number of grams of phenol contained in 3.50 mol of phenol. To do this, we need to multiply the number of moles by the molar mass.

Q: How do I calculate the number of grams of phenol contained in 3.50 mol of phenol?

A: To calculate the number of grams of phenol contained in 3.50 mol of phenol, you need to multiply the number of moles by the molar mass.

Comparing Calculated Value with Options

Comparing the calculated value of 325.35 g with the given options, we can see that none of the options match our calculated value. However, we can see that option A is close to our calculated value.

Q: Why is option A close to the calculated value?

A: Option A is close to the calculated value because it is the closest option to the actual value of 325.35 g.

Conclusion

In conclusion, the number of grams of phenol contained in 3.50 mol of phenol is 325.35 g. This value is not among the given options, but option A is close to our calculated value.

Q: What is the correct answer?

A: The correct answer is 325.35 g, but it is not among the given options.

Additional Information

Q: What are some common uses of phenol?

A: Phenol is used in various industries, including pharmaceuticals, dyes, and plastics. It is also used as a disinfectant and a preservative.

References

CRC Handbook of Chemistry and Physics, 97th Edition
National Institute of Standards and Technology (NIST) Chemistry WebBook

Understanding Phenol and Molar Mass
Calculating Molar Mass of Phenol
Calculating Grams of Phenol from Moles
Comparing Calculated Value with Options
Conclusion
Q: What is the correct answer?
Additional Information
Q: What are some common uses of phenol?
References
Table of Contents

Frequently Asked Questions

Q: What is the molar mass of phenol? A: The molar mass of phenol is 93.10 g/mol.
Q: How do I calculate the molar mass of phenol? A: To calculate the molar mass of phenol, you need to add the atomic masses of 6 carbon atoms, 5 hydrogen atoms, and 1 oxygen atom.
Q: How do I calculate the number of grams of phenol contained in 3.50 mol of phenol? A: To calculate the number of grams of phenol contained in 3.50 mol of phenol, you need to multiply the number of moles by the molar mass.
Q: Why is option A close to the calculated value? A: Option A is close to the calculated value because it is the closest option to the actual value of 325.35 g.
Q: What is the correct answer? A: The correct answer is 325.35 g, but it is not among the given options.
Q: What are some common uses of phenol? A: Phenol is used in various industries, including pharmaceuticals, dyes, and plastics. It is also used as a disinfectant and a preservative.