Стр. 357 - ДЛЯ ППС

357

3-

ɬΩɠɿɪɢɛɟ

. Ɇɵɫɬɵԙ ԕɚɬɵɫɵɦɟɧ ɠԥɧɟ ԕɚɬɵɫɵɧɫɵɡ

ɦɵɪɵɲɬɵԙ ɤԛɤɿɪɬ ԕɵɲԕɵɥɵɦɟɧ ԧɡɚɪɚ ԥɪɤɟɬɬɟɫɭɿ

Ɍɚɩɫɵɪɦɚɥɚɪ

:

1)

Ʉԛɤɿɪɬ ԕɵɲԕɵɥɵ

H

2

SO

4

ɟɪɿɬɿɧɞɿɫɿɧɟ ɦɵɪɵɲ

Zn

ɠԥɧɟ

ɦɵɫ

Cu

ɦɟɬɚɥɵɧɵԙ ԕɚɬɵɧɚɫɵɧ ɬɟɤɫɟɪɿԙɿɡ.

2)

Ɋɟɚɤɰɢɹɞɚɧ ɛɚɣԕɚɥɚɬɵɧ ɫɵɪɬԕɵ ɛɟɥɝɿɥɟɪɞɿ ɤԧɪɫɟɬɿԙɿɡ

ɠԥɧɟ ɨɥɚɪɞɵԙ ɬɟԙɞɟɭɥɟɪɿɧ ɠɚɡɵԙɵɡ.

3)

Ⱥɥɵɧԑɚɧ ɦԥɥɿɦɟɬɬɟɪɞɿ ɬԛɫɿɧɞɿɪɿԙɿɡ ɠԥɧɟ ɤԛɤɿɪɬ

ԕɵɲԕɵɥɵɧɵԙ

H

2

SO

4

ɟɪɿɬɿɧɞɿɫɿɧɟ ɦɵɪɵɲɬɵԙ

Zn

ɠԥɧɟ ɦɵɫɬɵԙ

Cu

ԕɚɬɵɧɚɫɵ ɬɭɪɚɥɵ ԕɨɪɵɬɵɧɞɵ ɠɚɫɚԙɵɡ.

4) Zn-Cu

ɠԝɛɵɧɞɚ ԕɚɣ ɦɟɬɚɥɞɵԙ ɤɚɬɨɞ ɛɨɥɚɬɵɧɵɧ

ɤԧɪɫɟɬɿԙɿɡ ɠԥɧɟ ɨɥ ɧɟ ɫɟɛɟɩɬɟɧ ɤԛɤɿɪɬ ԕɵɲԕɵɥɵɧɞɚ

H

2

SO

4

ɦɵɪɵɲɬɵԙ

Zn

ɟɪɭɿɧ ɤԛɲɟɣɬɟɞɿ.

ΘΡɪɚɥɞɚɪ ɠΩɧɟ ɪɟɚɤɬɢɜɬɟɪ.

ɋɵɧɚɭɵԕɬɚɪ, 2 ɧ ɤԛɤɿɪɬ

ԕɵɲԕɵɥɵɧɵԙ H

2

SO

4

, ɦɵɫ ɫɭɥɶɮɚɬɵɧɵԙ Cu

SO

4

ɟɪɿɬɿɧɞɿɥɟɪɿ,

ɦɟɬɚɥɞɵԕ ɦɵɪɵɲɬɵԙ Zn ɬԛɣɿɪɲɿɤɬɟɪɿ, ɦɵɫ ɫɵɦɵ Cu.

ɌΩɠɿɪɢɛɟɧɿΝ ɨɪɵɧɞɚɥɭɵ.

Ⱥɥɞɵɦɟɧ ɟɤɿ ɫɵɧɚɭɵԕ ɚɥɵԙɵɡ: ɛɿɪ ɫɵɧɚɭɵԕԕɚ ɦɵɪɵɲ Zn

ɬԛɣɿɪɿɧ ɫɚɥɵԙɵɡ, ɚɥ ɛɚɫԕɚɫɵɧɚ ɦɵɫ ɫɵɦɵɧ Cu. Ԥɪ ɫɵɧɚɭɵԕԕɚ

ɲɚɦɚɦɟɧ 1

-2

ɦɥ 2ɧ H

2

SO

4

ɟɪɿɬɿɧɞɿɫɿɧ ԕԝɣɵԙɵɡ ɠԥɧɟ ԕɚɣ

ɫɵɧɚɭɵԕɬɚ ɝɚɡɞɵԙ ɛԧɥɿɧɝɟɧɿɧ ɤԧɪɿԙɿɡ. ɋɨɧɚɧ ɫɨԙ ɬɚԑɵ ɞɚ ɛɿɪ

ɫɵɧɚɭɵԕ ɚɥɵɩ, ɨԑɚɧ ԕɚɣɬɚ 1

-

2 ɦɥ 2 ɧ H

2

SO

4

ɟɪɿɬɿɧɞɿɫɿɧ ɠԥɧɟ ɬɚɡɚ

ɦɵɪɵɲɬɵԙ Zn ɤɿɲɤɟɧɟ ɤɟɫɟɝɿɧ ɫɚɥɵԙɵɡ.

Ɇɵɪɵɲɬɵԙ Zn ɟɪɭɿɧ ɠԥɧɟ ɫɭɬɟɝɿɧɿԙ ɛԧɥɿɧɭɿɧ ɛɚԕɵɥɚԙɵɡ.

Ⱥɪɵ ԕɚɪɚɣ ɦɵɫ ɫɵɦɵɧ ɚɥɵɩ, ɨɧɵ ɫɵɧɚɭɵԕɬɚԑɵ ɦɵɪɵɲ

ɬԛɣɿɪɲɿɝɿɧɟ ɬɢɝɿɡɿԙɿɡ, ɫɨɞɚɧ ɫɨԙ ɨɧɵ ɚɥɵԙɵɡ. Ɇɵɫɬɵԙ

ԕɚɬɵɫɭɵɦɟɧ ɠԥɧɟ ԕɚɬɵɫɵɧɫɵɡ ɦɵɪɵɲɬɵԙ ɛɟɬɿɧɞɟ ɬԛɪɥɿ

ԕɚɪԕɵɧɞɵɥɵԕɬɚ ɫɭɬɟɝɿɧɿԙ ɛԧɥɿɧɭɿɧ ɤԧɪɿԙɿɡ.

ɌΩɠɿɪɢɛɟɧɿ ɛɚɫΙɚɲɚ ɠΟɪɝɿɡɭɝɟ ɛɨɥɚɞɵ.

ȿɤɿ ɫɵɧɚɭɵԕ

ɚɥɵԙɵɡ ɠԥɧɟ ɨɥɚɪԑɚ 1

-

2 ɦɥ 2 ɧ ɤԛɤɿɪɬ ԕɵɲԕɵɥɵɧɵԙ H

2

SO

4

ɟɪɿɬɿɧɞɿɫɿɧ ԕԝɣɵԙɵɡ. ɋɨɧɚɧ ɫɨԙ ɟɤɿ ɫɵɧɚɭɵԕԕɚ ɦɵɪɵɲ Zn

ɬԛɣɿɪɲɿɝɿɧ ɫɚɥɵԙɵɡ, ɫɨɧɵɦɟɧ ɛɿɪɝɟ ɨɧɵԙ ɛɿɪ ɫɵɧɚɭɵԑɵɧɚ 1

-2