Question

The molecular mass of oxygen is ___​

Answer 1

Answer:

16u

Explanation:

• Oxygen's atomic weight is 16.00 u. 1 mole of oxygen is 6.02×10^23

 atoms of oxygen 1 u = 1.661×10^−24 g.

• Molar mass (in grams) is always equal to the atomic weight of the atom!

So answer is 16.

Answer 2

Answer:

5.999 u

Explanation:

atomic number:8

electron per shell:2,6

symbol:O