Chapitre 1B Flashcards

1
Q

p (rhô)

A
  • m solution (g/kg) / V solution (ml/L)
  • m soluté (g/kg) / V soluté (ml/L)
  • m solvant (g/kg) / V solvant (ml/L)
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2
Q

pourcentage massique %m/m

A

m soluté / m solution ) x 100

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3
Q

pourcentage volumique %(V/V)

A

(v soluté / v solution) x 100

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4
Q

pourcentage masse/volume (%m/V)

A

(m soluté x v solution) x 100

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5
Q

ppm (parties par million)

A

nombre de particules de slt par un million de particules de sln

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6
Q

ppm (formule)

A
  • (masse de soluté (g) / masse de solution (g)) x 10^6
  • masse de souté (mg) / volume de solution (L)
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7
Q

ppb (parties par milliard)

A

nombre de particules de slt par un milliard de particules de sln

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8
Q

ppb (formule)

A
  • (masse de soluté (g) / masse de solution (g)) x 10^9
  • masse de souté (ug) / volume de solution (L)
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9
Q

fraction molaire (X)

A
  • n soluté (mol) / n solution (mol)
  • n soluté (mol) / n soluté + n solvant
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10
Q

XA + XB =

A

1

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11
Q

molalité (m)

A

n soluté (mol) / m solvant (kg)

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12
Q

molalité (exception)

A

la masse de solvant ne change pas avec la température; le volume oui

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