Question

How many carbon atoms present in n mole of citric acid?

• A. 3n
• B. 6n
• C. 2n
• D. 4n

Answer 1

The Correct Option is B

Solution: Number of Carbon Atoms in n Moles of Citric Acid

Citric acid is a naturally occurring organic acid with the molecular formula C₆H₈O₇, meaning that each molecule of citric acid contains 6 carbon atoms.

Step 1: Understanding the Chemical Formula

The molecular formula of citric acid is C₆H₈O₇, which indicates that each molecule contains:

• 6 carbon atoms (C)
• 8 hydrogen atoms (H)
• 7 oxygen atoms (O)

Step 2: Finding the Number of Carbon Atoms in n Moles

One mole of citric acid contains 6 carbon atoms per molecule. Therefore, in one mole of citric acid, the number of carbon atoms is:

6 × (1 mole) × (6.022 × 10²³ molecules/mole) = 6 × 6.022 × 10²³ carbon atoms

If we have n moles of citric acid, the number of carbon atoms will be:

6 × n × 6.022 × 10²³ = 6n × 6.022 × 10²³ carbon atoms

So, the number of carbon atoms in n moles of citric acid will be 6n, as the correct answer from the given options.

Conclusion:

The number of carbon atoms in n moles of citric acid is 6n, corresponding to Option 2: 6n.