Determine the number of moles of oxygen atoms in each of the following.

5.91mol H2O2
2.7mol N2O
2.23mol CO2

To determine the number of moles of oxygen atoms in each compound, we need to use the chemical formulas and the coefficients of the elements in the formulas.

1. Hydrogen peroxide (H2O2):
The formula for hydrogen peroxide is H2O2. It contains 2 hydrogen atoms (H) and 2 oxygen atoms (O). So, in 1 mole of H2O2, there are 2 moles of oxygen atoms.
Therefore, in 5.91 mol of H2O2, there would be 5.91 x 2 = 11.82 moles of oxygen atoms.

2. Nitrous oxide (N2O):
The formula for nitrous oxide is N2O. It contains 2 nitrogen atoms (N) and 1 oxygen atom (O). So, in 1 mole of N2O, there is 1 mole of oxygen atoms.
Therefore, in 2.7 mol of N2O, there would be 2.7 x 1 = 2.7 moles of oxygen atoms.

3. Carbon dioxide (CO2):
The formula for carbon dioxide is CO2. It contains 1 carbon atom (C) and 2 oxygen atoms (O). So, in 1 mole of CO2, there are 2 moles of oxygen atoms.
Therefore, in 2.23 mol of CO2, there would be 2.23 x 2 = 4.46 moles of oxygen atoms.

To determine the number of moles of oxygen atoms in each compound, we need to use the chemical formulas and the molar masses of the compounds.

First, let's identify the number of oxygen atoms in each compound by looking at their chemical formulas:

1. H2O2: This compound has two oxygen atoms.
2. N2O: This compound has one oxygen atom.
3. CO2: This compound has two oxygen atoms.

Next, we'll use Avogadro's number (6.022 × 10^23) to convert the number of moles to the number of oxygen atoms:

1. H2O2: Multiply the number of moles of H2O2 (5.91 mol) by the number of oxygen atoms in H2O2 (2) and by Avogadro's number (6.022 × 10^23):
Number of oxygen atoms = 5.91 mol H2O2 × 2 oxygen atoms / 1 mol H2O2 × 6.022 × 10^23 atoms / 1 mol

2. N2O: Multiply the number of moles of N2O (2.7 mol) by the number of oxygen atoms in N2O (1) and by Avogadro's number:
Number of oxygen atoms = 2.7 mol N2O × 1 oxygen atom / 1 mol N2O × 6.022 × 10^23 atoms / 1 mol

3. CO2: Multiply the number of moles of CO2 (2.23 mol) by the number of oxygen atoms in CO2 (2) and by Avogadro's number:
Number of oxygen atoms = 2.23 mol CO2 × 2 oxygen atoms / 1 mol CO2 × 6.022 × 10^23 atoms / 1 mol

Now, you can perform the calculations to find the number of oxygen atoms in each of the given compounds.

5.56

5.91 x (2 mole O atoms/1 mole H2O2) = ??

The others are done the same way.