Corps purs et mélanges Flashcards

1
Q

Nombre d’atomes

A

N = n*Na

n: quantité de matière en mol
Na: nombre d’Avogadro

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2
Q

Masse molaire

A

M = m*Na

M: masse molaire en g/mol
m: masse une entité en g
Na: nombre d’Avogadro

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3
Q

Masse d’une entité

A

m = n*M

m: masse en g
n: quantité de matière en mol
M: masse molaire en g/mol

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4
Q

Volume d’un gaz

A

V = n*Vm

V: volume en L
n: quantité de matière en mol
Vm: volume molaire en L/mol

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5
Q

Concentration en masse

A

Cm = m/V

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6
Q

Concentration en quantité de matière

A

C = n/V

C = Cm/M

C en mol/L
Cm en g/L
M en g/mol

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7
Q

Relation concentration/volume et fille/mère

A

CmVm = CfVf

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8
Q

Facteur de dilution

A

F=Cm/Cf

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9
Q

Écart relatif

A

Valeur mesurée-Valeur théorique / Valeur théorique

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