Question

How many oxygen atoms are there in 1.50 mol of O2?

Answer 1

Answer:

1 mole of O2 =6.022* 10^23 O2 molecules

1 O2 molecule contains 2 O atoms

Therefore,

No.of O atoms in 1 mole of O2 molecule = 2*6.022 *10^ 23 atoms

12.044*10^23 atoms ans..

Answer 2

The answer is 1.80 × 10²⁴ oxygen atoms

GIVEN

Moles of O₂ = 1.50

TO FIND

Number of oxygen atoms

SOLUTION

The above problem can be simply solved as follows;

It is known that,

1 mole of Oxygen gas = 6.022 × 10²³ molecules of Oxygen.

1.50 moles will contain = 1.50 × 6.022 × 10²³ = 9.033 × 10²³ molecules of Oxygen.

Now,

1 molecule of oxygen = 2 oxygen atoms

9.033 × 10²³ molecules of Oxygen will contain, 2 × 9.033 × 10²³ = 1.80 × 10²⁴ atoms

Hence, The answer is 1.80 × 10²⁴ atoms

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