To find the number of atoms in 8.00 g of molecular oxygen, O2, we need to use Avogadro's number, which states that there are 6.022 × 10^23 atoms in one mole of any substance.

Step 1: Determine the molar mass of O2. The atomic mass of oxygen is approximately 16.00 g/mol, so the molar mass of O2 (which consists of two oxygen atoms) is 2 * 16.00 g/mol = 32.00 g/mol.

Step 2: Convert the mass of O2 to moles using the molar mass. The number of moles = mass/molar mass = 8.00 g / 32.00 g/mol = 0.25 mol.

Step 3: Use Avogadro's number to find the number of atoms. The number of atoms = number of moles * Avogadro's number = 0.25 mol * 6.022 × 10^23 atoms/mol = 1.506 × 10^23 atoms.

So, there are approximately 1.506 × 10^23 oxygen atoms in 8.00 g of molecular oxygen, O2.

Question

To find the number of atoms in 8.00 g of molecular oxygen, O2, we need to use Avogadro's number, which states that there are 6.022 × 10^23 atoms in one mole of any substance.

Step 1: Determine the molar mass of O2. The atomic mass of oxygen is approximately 16.00 g/mol, so the molar mass of O2 (which consists of two oxygen atoms) is 2 * 16.00 g/mol = 32.00 g/mol.

Step 2: Convert the mass of O2 to moles using the molar mass. The number of moles = mass/molar mass = 8.00 g / 32.00 g/mol = 0.25 mol.

Step 3: Use Avogadro's number to find the number of atoms. The number of atoms = number of moles * Avogadro's number = 0.25 mol * 6.022 × 10^23 atoms/mol = 1.506 × 10^23 atoms.

So, there are approximately 1.506 × 10^23 oxygen atoms in 8.00 g of molecular oxygen, O2.

Knowee AI · Accepted Answer

To find the number of atoms in 8.00 g of molecular oxygen, O2, we need to use Avogadro's number, which states that there are 6.022 × 10^23 atoms in one mole of any substance.

Step 1: Determine the molar mass of O2. The atomic mass of oxygen is approximately 16.00 g/mol, so the molar mass of O2 (which consists of two oxygen atoms) is 2 * 16.00 g/mol = 32.00 g/mol.

Step 2: Convert the mass of O2 to moles using the molar mass. The number of moles = mass/molar mass = 8.00 g / 32.00 g/mol = 0.25 mol.

Step 3: Use Avogadro's number to find the number of atoms. The number of atoms = number of moles * Avogadro's number = 0.25 mol * 6.022 × 10^23 atoms/mol = 1.506 × 10^23 atoms.

So, there are approximately 1.506 × 10^23 oxygen atoms in 8.00 g of molecular oxygen, O2.

There are × 1023 oxygen atoms in 8.00 g of molecular oxygen, O2.

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