Druhý zápočtový test na cvičení Flashcards

1
Q

Elektrodový potenciál (E) je roven…

A

= E0 - RT/zF * ln[red]/[ox]

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2
Q

Elektrodový potenciál (E) za standartních podmínek je roven…

A

= E0 + 0,0592/z * log [ox]([red]

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3
Q

R =

A

8,314 m^3 Pa K^-1 mol^-1

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4
Q

Faradayova konstanta F =

A

96 485 c/mol

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5
Q

u oxidačně-redukčních rovnovách jde směr reakce vždy …

A

k redukci

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6
Q

pH=

A

-log a(H+)

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7
Q

aktivita a=

A

c*gama

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8
Q

koncentrace c =

A

c = n/V

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9
Q

u výpočtu pH z aktivity a = c* gama, se gama = 1 ….?

A

…při nízké koncentraci! (menší než 5*10^-7)

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10
Q

u výpočtu pH, kdy je koncentrace menší než 5*10^-7…

A

…nesmíme zanedbat autoprotolýzu vody.

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11
Q

Kv =

A

10 ^ -14

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12
Q

pKv =

A

14

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13
Q

rozpustnost (c) =

A

(n+m)tá odmocnina z (Ks/m^m*n^n)

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14
Q

Ks je…

A

…součin rozpustnosti

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