Question

What is the approximate mass of an oxygen atom in atomic mass units? What is the approximate mass of two oxygen atoms? How about an oxygen molecule?
@Abhisar

Answer 1

No of protons in an Oxygen atom = 8, No. of neutrons in an oxygen atom = 8
Atomic mass = 8+8=16u

Answer 2

u=symbol for atomic mass unit

Answer 3

oxygen is 15.999? 15.999*2=31.998?

Answer 4

yes, mass of one oxygen molecule will be 16*2 because one molecule of oxygen contains 2 atoms

Answer 5

Got it ?

Answer 6

no it was a guess

Answer 7

Mass of one O = 16
Mass of 2 O = 32
Mass of one Oxygen molecule (O\(_2)\) = 32

Answer 8

All clear ?

Answer 9

so a molecule contains 2?

Answer 10

Yes, one oxygen molecule contain 2 atom, but one nitrogen molecule 3 atom.

Answer 11

ok got it

Answer 12

it depends upon the molecular formula

Answer 13

ok