Question

16 gram oxygen has same number of molecules as in first 16 gram co second 28 gram into third one gram H2 4th one gram cl2

Answer 1

Answer:

Oxygen’s atomic weight is 16.00 amu. 1 mole of oxygen is 6.02 x 1023 atoms of oxygen1 amu= 1.661 x 10-24gWhat is the molar mass (g/mole) of oxygen?16.00 amu/oxygen atom x 1.661 x 10-24g/amu= 2.657 x 10-24g/atom x 6.02 x 1023 atoms/mole=16.00 g/moleMolar mass (in grams) is always equal to the atomic weight of the atom!