химия

№ варианта

Равновесие в гальваническом элементе при 298 K

Равновесные концентрации, моль/л

1

Zn + 2Ag⁺    Zn²⁺ + 2Ag

[Zn²⁺] = 10^-2, [Ag⁺] = 10^-4

2

Cd + Cu²⁺    Cd²⁺ + Cu

[Cd²⁺] = 10^-3, [Cu²⁺] = 10^-2

3

Zn + Sn²⁺     Zn²⁺ + Sn

[Zn²⁺] = 10^-1, [Sn²⁺] = 10^-2

4

Fe + 2Ag⁺     Fe²⁺ + 2Ag

[Fe²⁺] = 10^-2, [Ag⁺] = 10^-3

5

Zn + Cu²⁺     Zn²⁺ +Cu

[Zn²⁺] = 1, [Cu²⁺] = 10^-2

6

Pb + Ni²⁺   Pb²⁺ +Ni

[Pb²⁺] = 10^-4, [Ni²⁺] = 10^-3

7

Pb + Co²⁺   Pb²⁺ +Co

[Pb²⁺] = 10^-3, [Co²⁺] = 10^-2

8

3Zn + 2Au³⁺    3Zn²⁺ + 2Au

[Zn²⁺] = 0,5, [Au³⁺] = 10^-4

9

3Cd + 2Al³⁺   2Cd²⁺ + 2Al

[Cd²⁺] = 10^-2, [Al³⁺] = 1

10

2Ag + Mg²⁺    2Ag⁺ +Mg

[Ag⁺] = 10^-4, [Mg²⁺] = 10^-1

11

2Al + 6H⁺    2Al³⁺ + 3H₂

[Al³⁺] = 0,1, [H⁺] =10^-2

12

H₂ + Sn²⁺   2H⁺ + Sn

[H⁺] =10^-3, [Sn²⁺] = 10^-2

13

Pb + Cd²⁺    Pb²⁺ +Cd

[Pb²⁺] = 1, [Co²⁺] = 10^-2

14

2Ag + Co²⁺     2Ag⁺ + Co

[Ag⁺] = 10^-4, [Co²⁺] = 0,5

15

2Ag + Ni²⁺    2Ag⁺ + Ni

[Ag⁺] = 10^-3, [Ni²⁺] = 10^-1

16

Fe + 2H⁺     Fe²⁺ + H₂

[Fe²⁺] = 10^-2, [H⁺] =10^-4

17

Al + Au³⁺    Al³⁺ + Au

[Al³⁺] = 1, [Au³⁺] = 10^-3

18

Zn + Co²⁺    Zn²⁺ +Co

[Zn²⁺] = 1, [Co²⁺] = 1

19

Mg + Sn²⁺    Mg²⁺ + Sn

[Mg²⁺] = 10^-2, [Sn²⁺] = 0,05

20

Sn + Co²⁺    Sn²⁺ +Co

[Sn²⁺] = 10^-2, [Co²⁺] = 10^-4

21

Cu + Cd²⁺     Cu²⁺ +Cd

[Cu²⁺] = 10^-2, [Cd²⁺] = 10^-2

22

Sn + Cd²⁺    Sn²⁺ +Cd

[Sn²⁺] = 10^-3, [Cd²⁺] = 1

23

2Ag + 2H⁺   2Ag⁺ + H₂

[Ag⁺] = 10^-2, [H⁺] =10^-1

24

Mg + Cu²⁺     Mg²⁺ +Cu

[Mg²⁺] = 10^-1, [Cu²⁺] = 10^-2

25

Fe + Pb²⁺   Fe²⁺ + Pb

[Fe²⁺] = 10^-2, [Pb²⁺] = 0,05

26

2Au + 3Co²⁺    2Au³⁺ + 3Co

[Au³⁺] = 10^-3, [Co²⁺] = 1

27

Sn + Pb²⁺     Sn²⁺ + Pb

[Sn²⁺] = 1, [Pb²⁺] = 10^-3

28

Zn + Cd²⁺     Zn²⁺ +Cd

[Zn²⁺] = 10^-2, [Cd²⁺] = 0,05

29

Cu + 2H⁺     Cu²⁺ + H₂

[Cu²⁺] = 10^-2, [H⁺] =10^-3

30

2Ag + Fe²⁺    2 Ag⁺ + Fe

[Ag⁺] = 10^-2, [Ni²⁺] = 0,5