Chemische analyse Hoofdstuk 4 Oxidimetrie
antwoorden opgaven
1
a
b
c
d
e
f
H +1
H +1
O -2
K +1
O -2
O -2
2
a
b
c
d
e
f
-1
+7
+3
0
+1
+3
3
12,26 mL
4
a
b
c
d
e
5
0,02026 mol/L
6
25,00 %(m/m)
7
11,88 mg/L
8
a
b
c
d
e
9
0,1180 mol/L
10
4,20 g/100 g
11
58,94 %(m/m)
12
36,0 %(m/m)
O -2
O -2
S +2
O -2
S +4
S +2,5
Cl +5
Cr +6
5 (COOH)2 + 2 MnO4- + 8 H3O+ → 10 CO2 + 2 Mn2+ + 12 H2O
5 Fe2+ + 2 MnO4- + 8 H3O+ → 5 Fe3+ + 2 Mn2+ + 12 H2O
5 H2O2 + 2 MnO4- + 6 H3O+ → 5 O2 + 2 Mn2+ + 14 H2O
5 SO32- + 2 MnO4- + 6 H3O+ → 5 SO42- + 2 Mn2+ + 9 H2O
5 H2S + 2 MnO4- + 6 H3O+ → 5 S + 2 Mn2+ + 14 H2O
ClO- + 2 I- + 2 H3O+ → I2 + Cl- + 3 H2O
H2O2 + 2 H3O+ + 2 I- → I2 + 4 H2O
O3 + 2 H3O+ + 2 I- → I2 + 3 H2O + O2
IO3- + 6 H3O+ + 5 I- → 3 I2 + 9 H2O
Cr2O72- + 14 H3O+ + 6 I- → 3 I2 + 2 Cr3+ + 21 H2O
13 22,67 mL
1

elements, their occurrence and extraction

Exam 3 Review CHM 152 Spring 2014 18 19 KEY

Experiment 12

Final Alignment Girls U9-U11 - Utah Youth Soccer Association

Cl- NO3- SO42- Na+ NH4+ K+ Mg2+ Ca2+ Cl- NO3- SO42