What is the empirical formula of a compound with a molecular formula C6H12? (202

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Question: What is the empirical formula of a compound with a molecular formula C6H12? (2021)

Options:

Correct Answer: C2H4

Exam Year: 2021

Solution:

The empirical formula is obtained by dividing the subscripts by the greatest common divisor, which is 2. Thus, C6H12 becomes C3H6.

What is the empirical formula of a compound with a molecular formula C6H12? (2021)

What is the empirical formula of a compound with a molecular formula C6H12? (2021)

Step 1: Identify the molecular formula given, which is C6H12.
Step 2: Look at the subscripts in the molecular formula. The subscript for carbon (C) is 6 and for hydrogen (H) is 12.
Step 3: Find the greatest common divisor (GCD) of the subscripts 6 and 12. The GCD is 6.
Step 4: Divide each subscript by the GCD. For carbon: 6 ÷ 6 = 1. For hydrogen: 12 ÷ 6 = 2.
Step 5: Write the empirical formula using the new subscripts. The empirical formula is C1H2, which is usually written as CH2.

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