How many molecules are present in 3.25 mol of C2H6O?

• A. 3.25 × 10^{23} molecules
• B. 6.02 × 10^{23} molecules
• C. 1.95 × 10^{23} molecules
• D. 1.96 × 10^{24} molecules

Answer: (D)

Verified step by step guidance

1. Identify the given quantity: 3.25 moles of C\_2H\_6O (ethanol).
2. Recall Avogadro's number, which is the number of molecules in one mole of any substance: \$6.022 \times 10^{23}$ molecules/mol.
3. Set up the calculation to find the total number of molecules by multiplying the number of moles by Avogadro's number: \(\text{Number of molecules} = 3.25 \text{ mol} \times 6.022 \times 10^{23} \text{ molecules/mol}\).
4. Perform the multiplication of the numerical values and combine the powers of ten accordingly (do not calculate the final value here, just set up the expression).
5. Express the final answer in scientific notation to represent the total number of molecules in 3.25 moles of C\_2H\_6O.