Question

21. Which of the following has more number of atoms ?
1) 1 mole of neon gas 2) 1 mole of oxygen gas
3) 1 mole of ozone 4) 1 mole of carbon monoxide

Answer 1

Answer:

Explanation:

1) 1 mole of neon gas contains 6.022 x 10²³ atoms

2) 1 mole of oxygen gas (O₂) contains 6.022 x 10²³ molecules.

   there are two atoms in O₂ gas, so, 2 x 6.022 x 10²³ atoms = 12.044 x 10²³                atoms

3) 1 mole of ozone (O₃) contains 6.022 x 10²³ molecules.

   there are three oxygen atos, so, there will be 3 x 6.022 x 10²³ atoms = 18.066 x 10²³ atoms.

4) 1 mole of carbon monoxide (CO) contains  6.022 x 10²³ molecules.

    there are one carbon and one oxygen atom each, that is there are 2 atoms, so, there will be 2 x 6.022 x 10²³ atoms = 12.044 x 10²³  atoms

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