The Formula Of Nitrobenzene Is $C_6H_5NO_2$. The Molecular Weight Of This Compound Is _____ Amu.A. 3.06 B. 43.03 C. 123.11 D. 109.10 E. 107.11
Introduction
Nitrobenzene is a toxic and highly flammable organic compound that is widely used in various industrial applications. Its chemical formula is , which indicates the presence of six carbon atoms, five hydrogen atoms, one nitrogen atom, and two oxygen atoms. In this article, we will explore the molecular weight of nitrobenzene and its significance in chemistry.
What is Molecular Weight?
Molecular weight, also known as molar mass, is the total mass of all the atoms in a molecule. It is an essential concept in chemistry that helps us understand the properties and behavior of substances. The molecular weight of a compound is calculated by adding the atomic masses of all the atoms present in its formula.
Calculating the Molecular Weight of Nitrobenzene
To calculate the molecular weight of nitrobenzene, we need to add the atomic masses of all the atoms present in its formula. The atomic masses of the elements present in nitrobenzene are:
- Carbon (C): 12.01 amu
- Hydrogen (H): 1.008 amu
- Nitrogen (N): 14.01 amu
- Oxygen (O): 16.00 amu
Using these atomic masses, we can calculate the molecular weight of nitrobenzene as follows:
- 6 carbon atoms: 6 x 12.01 amu = 72.06 amu
- 5 hydrogen atoms: 5 x 1.008 amu = 5.04 amu
- 1 nitrogen atom: 1 x 14.01 amu = 14.01 amu
- 2 oxygen atoms: 2 x 16.00 amu = 32.00 amu
Adding these values together, we get:
72.06 amu + 5.04 amu + 14.01 amu + 32.00 amu = 123.11 amu
Conclusion
The molecular weight of nitrobenzene is 123.11 amu. This value is essential in understanding the properties and behavior of nitrobenzene, such as its boiling point, melting point, and solubility. In conclusion, the molecular weight of a compound is a critical concept in chemistry that helps us understand the properties and behavior of substances.
Significance of Molecular Weight in Chemistry
Molecular weight is a fundamental concept in chemistry that has numerous applications in various fields. Some of the significance of molecular weight in chemistry include:
- Understanding the properties of substances: Molecular weight helps us understand the properties of substances, such as their boiling point, melting point, and solubility.
- Predicting the behavior of substances: Molecular weight helps us predict the behavior of substances in various chemical reactions.
- Determining the purity of substances: Molecular weight helps us determine the purity of substances by comparing their actual molecular weight with their theoretical molecular weight.
- Understanding the structure of molecules: Molecular weight helps us understand the structure of molecules by identifying the presence of different atoms and their relative abundance.
Conclusion
In conclusion, the molecular weight of nitrobenzene is 123.11 amu. This value is essential in understanding the properties and behavior of nitrobenzene, such as its boiling point, melting point, and solubility. The significance of molecular weight in chemistry is multifaceted, and it has numerous applications in various fields.
References
- CRC Handbook of Chemistry and Physics: This reference book provides the atomic masses of all the elements, which are essential in calculating the molecular weight of compounds.
- Chemical Abstracts: This reference book provides a comprehensive database of chemical compounds, including their molecular weights and properties.
- Online resources: There are numerous online resources available that provide the molecular weights of compounds, including the National Institute of Standards and Technology (NIST) and the Royal Society of Chemistry (RSC).
Frequently Asked Questions
- What is the molecular weight of nitrobenzene?
- The molecular weight of nitrobenzene is 123.11 amu.
- How is the molecular weight of a compound calculated?
- The molecular weight of a compound is calculated by adding the atomic masses of all the atoms present in its formula.
- What is the significance of molecular weight in chemistry?
- Molecular weight is a fundamental concept in chemistry that has numerous applications in various fields, including understanding the properties and behavior of substances, predicting the behavior of substances, determining the purity of substances, and understanding the structure of molecules.
Frequently Asked Questions about Nitrobenzene =============================================
- Molecular weight is a fundamental concept in chemistry that has numerous applications in various fields, including understanding the properties and behavior of substances, predicting the behavior of substances, determining the purity of substances, and understanding the structure of molecules.
Q: What is nitrobenzene?
A: Nitrobenzene is a toxic and highly flammable organic compound that is widely used in various industrial applications. Its chemical formula is , which indicates the presence of six carbon atoms, five hydrogen atoms, one nitrogen atom, and two oxygen atoms.
Q: What is the molecular weight of nitrobenzene?
A: The molecular weight of nitrobenzene is 123.11 amu.
Q: How is the molecular weight of a compound calculated?
A: The molecular weight of a compound is calculated by adding the atomic masses of all the atoms present in its formula. The atomic masses of the elements present in nitrobenzene are:
- Carbon (C): 12.01 amu
- Hydrogen (H): 1.008 amu
- Nitrogen (N): 14.01 amu
- Oxygen (O): 16.00 amu
Q: What is the significance of molecular weight in chemistry?
A: Molecular weight is a fundamental concept in chemistry that has numerous applications in various fields, including:
- Understanding the properties and behavior of substances
- Predicting the behavior of substances
- Determining the purity of substances
- Understanding the structure of molecules
Q: What are some common uses of nitrobenzene?
A: Nitrobenzene is widely used in various industrial applications, including:
- The production of aniline, a key intermediate in the manufacture of dyes, plastics, and other chemicals
- The production of nitrobenzene-based pesticides and herbicides
- The production of nitrobenzene-based pharmaceuticals
- The production of nitrobenzene-based dyes and pigments
Q: Is nitrobenzene toxic?
A: Yes, nitrobenzene is a toxic and highly flammable compound that can cause serious health problems if ingested, inhaled, or if it comes into contact with the skin. Prolonged exposure to nitrobenzene can cause damage to the liver, kidneys, and nervous system.
Q: How should nitrobenzene be handled and stored?
A: Nitrobenzene should be handled and stored with caution. It should be stored in a well-ventilated area, away from heat sources and open flames. It should also be stored in airtight containers to prevent leakage and contamination.
Q: What are some common safety precautions when working with nitrobenzene?
A: Some common safety precautions when working with nitrobenzene include:
- Wearing protective clothing, including gloves, goggles, and a face mask
- Working in a well-ventilated area
- Avoiding skin contact and inhalation of fumes
- Using a fume hood or other ventilation system to prevent the buildup of fumes
- Following proper disposal procedures to prevent environmental contamination
Q: Can nitrobenzene be disposed of in the regular trash?
A: No, nitrobenzene should not be disposed of in the regular trash. It is a hazardous waste that requires special handling and disposal procedures to prevent environmental contamination.
Q: Where can I find more information about nitrobenzene?
A: You can find more information about nitrobenzene from various sources, including:
- The National Institute of Standards and Technology (NIST)
- The Royal Society of Chemistry (RSC)
- The Environmental Protection Agency (EPA)
- The Occupational Safety and Health Administration (OSHA)
- The American Chemical Society (ACS)