Formler Flashcards

1
Q

Kw vid 25 grader

A

1.0 x 10^-14

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2
Q

Formeln för Ka

A

Ka = [H+][A-]/[HA], Ka = (Koncentrationen av vätejoner)* Koncentrationen av konjugerad bas) / (Koncentrationen av syran)

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3
Q

Formeln för Kb

A

Kb = [OH-][BH+]/[B], Kb = (Koncentrationen av hydroxidjoner)* Koncentrationen av konjugerad syra)/ (Koncentrationen av basen)

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4
Q

räkna ut pKa ur Ka

A

pKa = -log(Ka)

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5
Q

räkna ut Ka ur pKa

A

Ka = 10^(-pKa)

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6
Q

räkna ut pKb ur Kb

A

pKb = -log(Kb)

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7
Q

räkna ut Kb ur pKb

A

Kb = 10^(-pKb)

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8
Q

räkna ut pH från vätejonkoncentrationen

A

pH = -log([H+])

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9
Q

räkna ut vätejonkoncentrationen ur pH

A

[H+] = 10^(-pH)

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10
Q

räkna ut pOH ur hydroxidjonkoncentrationen

A

pOH = -log([OH-])

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11
Q

räkna ut hydroxidjonkoncentrationen ur pOH

A

[OH-] = 10^(-pOH)

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12
Q

Relation mellan pH och pOH (vid 25°C):

A

pH + pOH = 14

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13
Q

Räkna ut Kw ur Ka och Kb

A

Kw = Ka*Kb

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14
Q

Räkna ut Ka ur Kw och Kb

A

Ka= Kw/Kb

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15
Q

Räkna ut Kb ur Kw och Ka

A

Kb =Kw/Ka

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16
Q

samband mellan m, n och M

A

m=n*M

17
Q

formel för spädning

A

c1v1=c2v2

18
Q

Energiändring

A

Delta(H)

19
Q

Samband mellan Entalpi, Energi och tryck

A

H = E + pV

20
Q

Allmänna gaslagen

A

p = (R * n * T) / V

21
Q

Allmänna gaskonstanten

A

8,314 Nm·mol-1 ·K-1 eller J·mol-1 ·K-1

22
Q

Blandning formel

A

C1 * V1 + C2 * V2 = C3 * V3

23
Q

Halvtiterpunkten

A

pH = pKa

24
Q

absorbansen ur koncentrationen och konstanten

A

A=c*k