The Atomic Mass Of Carbon Is 12.01, Sodium Is 22.99, And Oxygen Is 16.00. What Is The Molar Mass Of Sodium Oxalate $\left( Na_2 C_2 O_4 \right$\]?A. $\quad 134.00 \, \text{g}$ B. $\quad 133.00 \, \text{g}$ C. $\quad
Introduction
In chemistry, the molar mass of a compound is a crucial concept that helps us understand the mass of a single mole of that compound. The molar mass is calculated by adding the atomic masses of all the atoms present in the compound. In this article, we will calculate the molar mass of sodium oxalate, a compound with the chemical formula .
Understanding Atomic Mass
Before we dive into the calculation, let's briefly discuss what atomic mass is. Atomic mass is the mass of an atom of a particular element, usually expressed in units of grams per mole (g/mol). The atomic masses of the elements involved in this calculation are:
- Carbon (C): 12.01 g/mol
- Sodium (Na): 22.99 g/mol
- Oxygen (O): 16.00 g/mol
Calculating the Molar Mass of Sodium Oxalate
To calculate the molar mass of sodium oxalate, we need to add the atomic masses of all the atoms present in the compound. The formula for sodium oxalate is , which means it contains 2 sodium atoms, 2 carbon atoms, and 4 oxygen atoms.
The molar mass of sodium oxalate can be calculated as follows:
- Sodium (Na): 2 atoms * 22.99 g/mol = 45.98 g/mol
- Carbon (C): 2 atoms * 12.01 g/mol = 24.02 g/mol
- Oxygen (O): 4 atoms * 16.00 g/mol = 64.00 g/mol
Now, let's add the molar masses of all the atoms to get the molar mass of sodium oxalate:
45.98 g/mol (sodium) + 24.02 g/mol (carbon) + 64.00 g/mol (oxygen) = 134.00 g/mol
Conclusion
In conclusion, the molar mass of sodium oxalate is 134.00 g/mol. This calculation is essential in understanding the properties and behavior of sodium oxalate in various chemical reactions.
Answer
The correct answer is A. .
Additional Information
Sodium oxalate is a compound that is commonly used in various applications, including the production of sodium oxalate crystals, which are used in the manufacture of optical fibers. It is also used as a precursor in the synthesis of other compounds.
References
- CRC Handbook of Chemistry and Physics, 97th Edition
- National Institute of Standards and Technology (NIST) Webbook
Frequently Asked Questions
- Q: What is the molar mass of sodium oxalate?
- A: The molar mass of sodium oxalate is 134.00 g/mol.
- Q: What are the atomic masses of the elements involved in the calculation?
- A: The atomic masses of the elements involved are:
- Carbon (C): 12.01 g/mol
- Sodium (Na): 22.99 g/mol
- Oxygen (O): 16.00 g/mol
Frequently Asked Questions About Sodium Oxalate =====================================================
Q: What is sodium oxalate?
A: Sodium oxalate is a chemical compound with the formula . It is a salt of oxalic acid and sodium hydroxide.
Q: What are the properties of sodium oxalate?
A: Sodium oxalate is a white, crystalline solid that is highly soluble in water. It has a melting point of 270°C and a boiling point of 300°C. It is also highly reactive and can undergo various chemical reactions.
Q: What are the uses of sodium oxalate?
A: Sodium oxalate has various uses, including:
- Production of sodium oxalate crystals: Sodium oxalate crystals are used in the manufacture of optical fibers.
- Synthesis of other compounds: Sodium oxalate is used as a precursor in the synthesis of other compounds.
- Industrial applications: Sodium oxalate is used in various industrial applications, including the production of dyes, pigments, and other chemicals.
Q: Is sodium oxalate safe to handle?
A: Sodium oxalate can be hazardous if not handled properly. It can cause skin and eye irritation, and inhalation of its dust can cause respiratory problems. It is essential to wear protective gear, including gloves, goggles, and a mask, when handling sodium oxalate.
Q: How is sodium oxalate synthesized?
A: Sodium oxalate can be synthesized through various methods, including:
- Reaction of oxalic acid with sodium hydroxide: This is the most common method of synthesizing sodium oxalate.
- Reaction of sodium carbonate with oxalic acid: This method is also used to synthesize sodium oxalate.
Q: What are the environmental concerns associated with sodium oxalate?
A: Sodium oxalate can be hazardous to the environment if not disposed of properly. It can contaminate soil and water, and can also cause harm to aquatic life. It is essential to dispose of sodium oxalate in accordance with local regulations and guidelines.
Q: Can sodium oxalate be used in food and beverages?
A: Sodium oxalate is not typically used in food and beverages due to its potential toxicity. However, it may be used as a food additive in some cases, such as in the production of certain types of candy or desserts.
Q: Is sodium oxalate a common household chemical?
A: No, sodium oxalate is not a common household chemical. It is typically used in industrial and laboratory settings.
Q: Can sodium oxalate be used in medical applications?
A: Sodium oxalate may be used in medical applications, such as in the treatment of certain types of kidney stones. However, it is essential to consult with a medical professional before using sodium oxalate for any medical purpose.
Q: What are the storage and handling requirements for sodium oxalate?
A: Sodium oxalate should be stored in a cool, dry place, away from direct sunlight and heat sources. It should be handled with care, and protective gear, including gloves and goggles, should be worn when handling it.
Q: Can sodium oxalate be recycled?
A: Yes, sodium oxalate can be recycled. It can be recovered from industrial waste streams and reused in various applications.
Q: What are the regulatory requirements for sodium oxalate?
A: Sodium oxalate is regulated by various government agencies, including the Environmental Protection Agency (EPA) and the Occupational Safety and Health Administration (OSHA). It is essential to comply with local regulations and guidelines when handling and disposing of sodium oxalate.