Question

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

1) 4.93 mol H2O2
2) 2.01 mol N2O

Answer 1

Part 1: 4.93 moles of
`H_2O_2` contains 9.86 moles of oxygen atoms.

Part 2: 2.01 moles of
`N_2O` contains 2.01 moles of oxygen atoms.

Explanation :

Part 1: 4.93 mol
`H_2O_2`

In 1 mole of
`H_2O_2`, there are 2 atoms of hydrogen and 2 atoms of oxygen.

As, 1 mole of
`H_2O_2` contains 2 moles of oxygen atoms.

So, 4.93 moles of
`H_2O_2` contains
`4.93* 2=9.86` moles of oxygen atoms.

Thus, 4.93 moles of
`H_2O_2` contains 9.86 moles of oxygen atoms.

Part 2: 2.01 mol
`N_2O`

In 1 mole of
`N_2O`, there are 2 atoms of nitrogen and 1 atom of oxygen.

As, 1 mole of
`N_2O` contains 1 mole of oxygen atoms.

So, 2.01 moles of
`N_2O` contains
`2.01* 1=2.01` moles of oxygen atoms.

Thus, 2.01 moles of
`N_2O` contains 2.01 moles of oxygen atoms.