Biokemi Flashcards

1
Q

Opskriv Fentons reaktion

A

H202 —Fe2+—Fe3+—> OH* + OH-

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2
Q

Opskriv ligningen for pH-beregning for stærke syrer

A

pH=-log(H+)

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3
Q

Opskriv ligningen for pH-beregning ved svage syrer

A

pH=1/2*(pKa-log(C_a))

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4
Q
Forklar følgende enheder:
n
m
M_w
M
V
C
A
n = antal mol
m = stofmængden (g)
M_w = molvægt (g/mol)
M =molær (mol/L)
V = voumen (L)
C = molær koncentration (mol/L -> M)
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5
Q

Hvad betyder huskereglen “måger over bjerge”?

A

n=m/M_w

Antallet af mol er lig stofmængden i gram delt med molvægten i g/mol

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6
Q

Hvad er et chiralt kulstofatom?

A

Assymetrisk kulstofatom
Kulstofatom med FIRE forskellige substituenter (atom/gruppe af atomer, der sidder ved siden af)

Skal have fire forskellige, dvs. et kulstofatom med dobbeltbindinger kan ikke være chiralt

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