If oxygen has an atomic mass of 16, how many grams of oxygen are present in 1 mole of oxygen atoms?

• A. 1 gram
• B. 16 grams
• C. 32 grams
• D. 8 grams

Answer: (B)

Verified step by step guidance

1. Understand that the atomic mass of an element (given in atomic mass units, amu) corresponds to the mass of one mole of its atoms in grams. This is known as the molar mass.
2. Identify the atomic mass of oxygen, which is given as 16 amu. This means one atom of oxygen has a mass of 16 atomic mass units.
3. Recall that 1 mole of any element contains Avogadro's number of atoms (approximately \$6.022 \times 10^{23}$ atoms).
4. Use the relationship that the molar mass in grams per mole is numerically equal to the atomic mass in amu for the element. Therefore, 1 mole of oxygen atoms has a mass of 16 grams.
5. Conclude that the number of grams of oxygen in 1 mole of oxygen atoms is 16 grams, based on the atomic mass provided.