Question

calculate the mass of one atom of oxygen​

Answer 1

Answer:

Explanation:

→ We know the mass of 6.022×10^23 oxygen atoms which are present in 1 mole of an atom mass of 1 mole of an oxygen atom is 15.99 g/mol ≈16 g/mol

→ 1 mole of oxygen= 16 g

→ 6.022×10^23 atoms of oxygen=16 g

→ 1 atom of oxygen= 16÷6.022×10^23 g

→ 1 atom of oxygen=2.65692461×10^-23

→ Thus mass of one oxygen atom is 2.65692461×10^-23.

Answer 2

Answer:

Explanation:

We know that Na = 6.022×10^23 moles

Also 1 mole of O2 = 16g

So, 6.022×10^-23 moles = 16 g of O2

1 mole = 2.65×10^-23