chemische Reaktionen Flashcards

1
Q

Summenformel

A

Summe der einzelnen Atome in einem Molekül ohne Aussage über genaue Anordnung der Atome

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2
Q

Strukturformeln

A
  • Valenzstrichformel
  • Skelettformel
  • Keilstrichformel
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3
Q

Valenzstrichformel

A

gibt alle Bindungen und freie Valenzelektronenpaare als Valenzstriche an

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4
Q

Skelettformel

A

C- und H-Atome sind nicht explizit ausgewiesen, stattdessen „Knick“

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5
Q

Keilstrichformel

A

Angaben zur Anordnung der Moleküle im dreidimensionalen Raum

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6
Q

Konstitutionsformel

A

Summe der einzelnen Atome in einem Molekül + Verbindung der Elemente zueinander

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7
Q

atomare Masseneinheit u

A

= 1/12 der Masse eines 12C-Isotops

1u = 1 Da = 1,66 x 10^-27 kg

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8
Q

relative Atommasse Ar

A

= Massenverhältnis eines Atoms im Vergleich zur atomaren Masseneinheit u

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9
Q

Formel Ar

A

Ar = m/u

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10
Q

Mol

A

= 1 mol besteht aus 6,022 x 10^23 Teilchen (NA)

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11
Q

Formel Stoffmenge n

A

n = m/M (mol)

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12
Q

Formel molares Volumen

A

Vm = V/n

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13
Q

Formel Dichte

A

p = m/V (kg/m^3)

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14
Q

Formel Molarität

A

c = n/V (mol/l)

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15
Q

Molalität

A

b = n/m (mol/kg)

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16
Q

Formel Massenkonzentration

A

ß = m/V (g/l)

17
Q

Massenanteil

A

w(i) = m(i)/m(ges)

18
Q

Volumenanteil

A

φ (i) = V(i)/V(ges)

19
Q

Isomere

A

gleiche Summenformel, aber unterschiedliche Strukturen