Question

What is the number of molecules in 0.25 miles of oxygen​

Answer 1

We know that :

1 mole of oxygen contains =6.022×1023 molecules

So, 0.25 moles of oxygen contains =6.022×1023×0.25

=1.505×1023 molecules

Thus, 0.25 mole of oxygen contains 1.505×1023 molecules.

Answer 2

Answer:

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