Question

What is the mass in grams of 1.50 x 10⁻² mol molecular oxygen?

Answer 1

The mass of 1.50 x 10⁻² mol molecular oxygen (O₂) is 0.48 grams, calculated using its molar mass of 32.00 g/mol.

Step-by-step explanation:

The mass in grams of 1.50 x 10⁻² mol molecular oxygen (O₂) can be found by using the molar mass of oxygen. The molar mass of molecular oxygen (O₂) is 32.00 g/mol since one mole of O₂ is composed of two atoms of oxygen and each oxygen atom has an atomic mass of approximately 16.00 g/mol.

To calculate the mass:

• Mass of O₂ = moles of O₂ x molar mass of O₂
• Mass of O₂ = 1.50 x 10⁻² mol x 32.00 g/mol
• Mass of O₂ = 0.48 g

Answer 2

The mass of 1.50 x 10⁻² mol molecular oxygen (O₂) is 0.48 grams, calculated by multiplying the given moles by the molar mass of oxygen gas, which is 32.00 g/mol.

Step-by-step explanation:

To calculate the mass in grams of 1.50 x 10⁻² mol molecular oxygen (O₂), you need to use the molar mass of oxygen gas. The molar mass of O₂ is 32.00 g/mol since each oxygen atom (O) has a molar mass of 16.00 g/mol and O₂ consists of two atoms.

Thus, the mass of 1.50 x 10⁻² mol of O₂ is calculated by multiplying the number of moles by the molar mass of O₂:

Mass of O₂ = (1.50 x 10⁻² mol) x (32.00 g/mol)

Mass of O₂ = 0.48 g

Therefore, the mass of molecular oxygen is 0.48 grams.