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Lokane
@Lokane
April 2019
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Salut, j'ai besoin d'aide pour mes devoirs. Mon devoir est dans les pièces jointes. Svp aidez moi merci d'avance :D
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eivmam
1) M(1)=6*12+12*1+6*16=180 g/mol
M(2)=12+4+2*14+16=60 g/mol
2) n=m/M
n(1)=1/180=5,56.10^-3 mol
n(2)=1/60=1,67.10^-2 mol
3) N=n*Na
N(1)=(5,56.10^-3)*(6,02.10^23)=3,35.10^21
N(2)=(1,67.10^-2)*(6,02.10^23)=1,01.10^22
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M(2)=12+4+2*14+16=60 g/mol
2) n=m/M
n(1)=1/180=5,56.10^-3 mol
n(2)=1/60=1,67.10^-2 mol
3) N=n*Na
N(1)=(5,56.10^-3)*(6,02.10^23)=3,35.10^21
N(2)=(1,67.10^-2)*(6,02.10^23)=1,01.10^22