Question

How many moles of atoms oxygen are in 4.92x10^24 molecules of KNO2?
(MMK = 39 g/mol, N = 14 g/mol, O = 16 g/mol)

Answer 1

Answer:

8.17

Explanation:

from

N=n×La

n=N/La

n=4.92×10^24/6.022×10^23

n= 8.17 moles