CuI 1. 0.1 M 50 mL 1.1 2. 1.2 I3 1.3 I2 [1] [2] 2I (aq) → I2(s) + 2e [1] I2

施建輝
國立新竹科學園區實驗高級中學
教育部高中化學學科中心
[email protected]

1
1.
0.1 M
50 mL
1.1
2.
1.2
CuI
I3−
1.3
I2
[1] [2]
2I−(aq) → I2(s) + 2e−
I2(s) + I−(aq) ⇌ I3−(aq)
1.1
1.2
[1]
[2]
1.3
82
Chemical Society Located in Taipei
Chemistry Education in Taiwan 2014, 1(1), 82-84
I−
I−
I2
I2
[6]
I3−
2S2O32−(aq) + I2(s) →
0.01 M
S4O62−(qq) + 2I−(aq) [6]
I2
[2]
[1]
I2(s) + I−(s) ⇌ I3−(s) [2]
2+
Cu
[3] [4]
2.3
Cu2+(aq) + 2e− → Cu(s) [3]
Cu2+(aq) + e− → Cu+(aq) [4]
[4]
Cu+
[4]
2.1
I−
[1]
Cu+
2.2
2.3
CuI
I3−

CuI
3
[5]
Cu+(aq) + I−(aq) → CuI(s) [5]

2
1.
1 M
2.1
2.
2.3
1
[7]
2.2
CuI(s) + 2S2O32−(aq) →
Cu(S2O3)2 3−(aq) + I−(aq)
I2
[7]
83
Chemical Society Located in Taipei
Chemistry Education in Taiwan 2014, 1(1), 82-84
Cu+(aq) + e− → Cu(s) E°= 0.52 V [9]
Cu+
11
[8] [9]
1B
[10]
2Cu+(aq) → Cu2+(aq) + Cu(s)
ΔE° = 0.18 V [10]
ΔE° > 0

1.
2.
Cr
Cu
d
3d54s1
Cr
3d44s2
3d104s1
Cu
3d94s2
Cu
3d104s1
d
d
Cu+
3d
3d10
3d104s1
Cu
Zn2+
3.
[8] [9]
Cu2+(aq) + 2e− → Cu(s) E°= 0.34 V [8]
84
Chemical Society Located in Taipei
Chemistry Education in Taiwan 2014, 1(1), 82-84

Download Report