Chapitre 1: Introduction Flashcards

1
Q

Fraction massique % (m/m)

A

(masse de soluté) / (masse de solution)

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2
Q

Partie par million

A
  • ppm : toujours (masse / masse)
  • 1 g / 1 000 000 g
  • 1 mg / 1 kg
  • 10^-4 %
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3
Q

Partie par millard

A
  • ppb
  • 1 g / 1 000 000 000 g
  • 1 ppb = 10^-3 ppm
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4
Q

Nombre d’Avogadro

A

6,02 x 10^23 particules = 1 mole

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5
Q

Masse volumique

A
  • p = m/v
  • kg/m^3
  • mg/L
  • ug/L
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6
Q

Densité

A

d = p / p h20 à 4 degré

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7
Q

Fraction molaire

A

X = moles de soluté / (moles de solutés + moles de solvant)

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8
Q

Molarité

A

M = moles de soluté / litre de solution

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9
Q

Molalité

A

m = nombre de mole de soluté / 1000g de solvant

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10
Q

Normalité

A
  • 1 M (mole/litre) de N2OH = 1 N d’éq. OH-
  • 1 N d’éq. OH- = 0,5 M de Ca(OH)2
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11
Q

Matière sèche ou solides totaux

A

Somme des solides en suspensions et des solides dissous

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12
Q

Solides volatiles

A

Peuvent être enlever par carbonisation

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13
Q

Siccité

A

masse matière sèche / masse total

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14
Q

Rapport volumique

A

(volume de soluté) / (volume de solution)

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15
Q
A
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