26-09-2020
Chemistry

contestada

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)

Respuesta :

26-09-2020

Answer:

8.17

Explanation:

from

N=n×La

n=N/La

n=4.92×10^24/6.022×10^23

n= 8.17 moles

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