Answer to Question #117498 in General Chemistry for Samantha

General Chemistry

Question #117498

How many atoms are in 42.4 g Mg ?

Expert's answer

N=n*N(Avogadro)

n(Mg)=m(Mg)/Mr(Mg)=42,4/24=1,77 moll

=>N=1,77*(6,02*10^23)= 1,07*10^24

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