Answer: Molar mass of vitamin C (C6H8O6) is 176.12 g/mol.
Molar Mass of Vitamin C
The chemical formula of Vitamin C is C6H8O6. The molar mass of Vitamin C is calculated by adding the molar masses of its constituent atoms— carbon(C), hydrogen (H), and oxygen (O).
Vitamin C, also known as ascorbic acid (C6H8O6), is an essential nutrient for humans, playing a crucial role in immune function, skin health, and the synthesis of collagen. It is also a powerful antioxidant.
This guide will walk you through the step-by-step calculation of the molar mass of vitamin C and its relevance in medical and nutritional contexts.
Understanding Molar Mass
Molar mass is the mass of one mole of a substance, expressed in grams per mole (g/mol). A mole represents \(6.022 \times 10^{23}\) particles, such as molecules, atoms, or ions. Calculating the molar mass is crucial for converting between mass and moles in chemical reactions, as well as determining the amount of a substance in nutritional supplements.
To calculate the molar mass of vitamin C (C6H8O6), we need to account for the molar masses of carbon (C), hydrogen (H), and oxygen (O), as vitamin C contains six carbon atoms, eight hydrogen atoms, and six oxygen atoms.
Molar Masses of Carbon, Hydrogen, and Oxygen
Here are the molar masses of the elements present in vitamin C:
- Carbon (C): The molar mass of carbon is approximately 12.01 g/mol.
- Hydrogen (H): The molar mass of hydrogen is approximately 1.008 g/mol.
- Oxygen (O): The molar mass of oxygen is approximately 16.00 g/mol.
Since vitamin C (C6H8O6) contains six carbon atoms, eight hydrogen atoms, and six oxygen atoms, we will use these values to calculate its molar mass.
Formula for Calculating Molar Mass
The molar mass of a compound is calculated using the following formula:
\[ \text{Molar Mass of Compound} = \sum (\text{Number of Atoms} \times \text{Molar Mass of Element}) \]
For vitamin C (C6H8O6), the formula becomes:
\[ \text{Molar Mass of C}_6\text{H}_8\text{O}_6 = (6 \times \text{Molar Mass of C}) + (8 \times \text{Molar Mass of H}) + (6 \times \text{Molar Mass of O}) \]
Step-by-Step Calculation
Let’s now calculate the molar mass of vitamin C step by step:
Step 1: Multiply the molar mass of carbon (C) by the number of carbon atoms in vitamin C:
\[ 6 \times 12.01 \, \text{g/mol} = 72.06 \, \text{g/mol} \]
Step 2: Multiply the molar mass of hydrogen (H) by the number of hydrogen atoms in vitamin C:
\[ 8 \times 1.008 \, \text{g/mol} = 8.064 \, \text{g/mol} \]
Step 3: Multiply the molar mass of oxygen (O) by the number of oxygen atoms in vitamin C:
\[ 6 \times 16.00 \, \text{g/mol} = 96.00 \, \text{g/mol} \]
Step 4: Add the values from steps 1, 2, and 3 to find the total molar mass of vitamin C:
\[ \text{Molar Mass of C}_6\text{H}_8\text{O}_6 = 72.06 \, \text{g/mol} + 8.064 \, \text{g/mol} + 96.00 \, \text{g/mol} \]
\[ \text{Molar Mass of C}_6\text{H}_8\text{O}_6 = 176.12 \, \text{g/mol} \]
Final Molar Mass of Vitamin C
The molar mass of vitamin C (C6H8O6) is approximately 176.12 g/mol. This value is essential for pharmaceutical and nutritional applications, helping determine the proper dosage and concentration in supplements and treatments.
Conclusion
The molar mass of vitamin C (C6H8O6) is 176.12 g/mol, calculated by summing the molar masses of six carbon atoms, eight hydrogen atoms, and six oxygen atoms.