What is the molar mass of O2? show your math below.
The Correct Answer and Explanation is:
To calculate the molar mass of O₂, we need to look at the atomic mass of oxygen and then determine the molar mass for two oxygen atoms.
Step 1: Find the atomic mass of oxygen
The atomic mass of a single oxygen atom (O) is approximately 16.00 g/mol.
Step 2: Multiply the atomic mass by 2
Since O₂ means there are two oxygen atoms in a molecule, we multiply the atomic mass of oxygen by 2.Molar mass of O₂=2×16.00 g/mol\text{Molar mass of O₂} = 2 \times 16.00 \, \text{g/mol}Molar mass of O₂=2×16.00g/molMolar mass of O₂=32.00 g/mol\text{Molar mass of O₂} = 32.00 \, \text{g/mol}Molar mass of O₂=32.00g/mol
Conclusion:
The molar mass of O₂ is 32.00 g/mol.
Explanation:
The molar mass refers to the mass of one mole of a substance. In this case, O₂ consists of two oxygen atoms, and since each oxygen atom has a molar mass of 16.00 g/mol, the molar mass of the O₂ molecule is double that. The reason we use the molar mass in grams per mole (g/mol) is that it gives us the mass of one mole of molecules. One mole of any substance contains Avogadro’s number of particles, which is approximately 6.022×10236.022 \times 10^{23}6.022×1023 particles.
So, when you have one mole of O₂ (32 grams), you are holding 6.022×10236.022 \times 10^{23}6.022×1023 O₂ molecules, and this helps when converting between mass, moles, and molecules in stoichiometric calculations.
