How many carbon atoms are present in 1.00 mol of C_2H_6?

• A. 2.00 × 10^{24}
• B. 1.20 × 10^{24}
• C. 3.01 × 10^{23}
• D. 6.02 × 10^{23}

Answer: (B)

Verified step by step guidance

1. Identify the molecular formula of the compound, which is C\_2H\_6. This means each molecule contains 2 carbon atoms.
2. Recall that 1 mole of any substance contains Avogadro's number of molecules, which is approximately 6.02 \times 10^{23} molecules/mol.
3. Calculate the total number of carbon atoms by multiplying the number of molecules in 1 mole by the number of carbon atoms per molecule: Total carbon atoms = (2 carbon atoms/molecule) \times (6.02 \times 10^{23} molecules).
4. Express the multiplication to find the total carbon atoms in scientific notation without performing the final arithmetic.
5. Interpret the result as the number of carbon atoms present in 1.00 mole of C\_2H\_6.