Final answer:
To find the total number of carbon atoms in 6.022×10²³ molecules of trifluoroacetic acid, multiply the number of molecules by 2 (since there are 2 carbon atoms per molecule). The result is 1.2044×10²³ carbon atoms. The correct option is d.
Step-by-step explanation:
The question is asking how many carbon (C) atoms are present in 6.022×10²³ molecules of trifluoroacetic acid, which has the molecular formula C₂HF₃O₂. Since each molecule of trifluoroacetic acid contains two carbon atoms, we simply need to multiply the given number of molecules by the number of carbon atoms per molecule to determine the total number of carbon atoms.
The calculation would be as follows:
- Number of carbon atoms per molecule of C₂HF₃O₂ = 2
- Given number of molecules = 6.022×10²³
- Total number of carbon atoms = Number of molecules * Number of carbon atoms per molecule
- = 6.022×10²³ * 2
- = 1.2044×10²³ carbon atoms
Therefore, the correct answer is D) 1.205×10²³ carbon atoms, where the number has been rounded to four significant figures in accordance with scientific notation standards.