How many hydrogen atoms are present in 1.00 mole of NH_3?

• A. 6.02 × 10^{23}
• B. 1.00 × 10^{24}
• C. 3.01 × 10^{24}
• D. 1.81 × 10^{24}

Answer: (C)

Verified step by step guidance

1. Identify the chemical formula of ammonia, which is NH_3. This means each molecule of ammonia contains 3 hydrogen atoms.
2. Recall that 1 mole of any substance contains Avogadro's number of molecules, which is approximately \$6.02 \times 10^{23}$ molecules per mole.
3. Calculate the total number of hydrogen atoms in 1 mole of NH_3 by multiplying the number of molecules in 1 mole by the number of hydrogen atoms per molecule: \$3 \times 6.02 \times 10^{23}$.
4. Express the multiplication as \$3 \times 6.02 \times 10^{23} = (3 \times 6.02) \times 10^{23}$ to simplify the calculation.
5. Combine the numbers to get the total number of hydrogen atoms in 1 mole of NH_3, which will be approximately \$1.81 \times 10^{24}$ hydrogen atoms.