How many oxygen molecules are in 3.36 g of oxygen?

1 Answer
Oct 25, 2017

Answer:

#6.321# x #10^22#

Explanation:

Solution:

Mass of Oxygen = #3.36g#
Molar mass of oxygen (#O_2#) = 16 x 2 = #32gmol^-#
Total molecules in oxygen = Mass in grams/Molar mass x #N_A#
= #3.36/32# x# 6.02# x #10^23#
= #6.321# x# 10^22#

Note:
#N_A#(Avagadro's number) = #6.02# x #10^23#

Hope it helps...