Formeln Flashcards

1
Q

relativer Fehler

A

(dx/x) * 100 bzw.
(Fehler/Messwert) * 100
[%]

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2
Q

Dichte

A

m/v
1000 kg/m3 = 1 kg/L = 1 g/mL

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3
Q

Verdünnungsreihe

A

c1 * V1 = c2 * V2
(Stocklösung = Standardlösung)

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4
Q

Stoffmengenkonzentration - Formel
Unter welcher Bezeichnung ist die Stoffmengenkonzentration noch bekannt

A

c = n/V
[mol/L] = [M]
Molarität

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5
Q

pH - starke Säuren

A

pH = -lg[H3O+] = -lg [Säure]

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6
Q

pH - schwache Säuren
Formel

A

pH = -0.5 * lg(Ks * c-Säure)
= 0.5 * [pKs - lg(c-Säure)]

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7
Q

Äquivalentstoffmenge

A

neq = n * z = m/ÄG = m/(M*0.5)

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8
Q

Äquivalentkonzentration

A

ceq(X) = neq(X)/V
ceq(X) = c(X) * V

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9
Q

Gehaltsbestimmung

A

m = ceq * V * ÄG * F

[mg/100ml] = [mmol/ml] * [mL] * [mg/mmol]

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10
Q
A
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