1 13579 11
∗
2 © 2019
HKDSE-S6 CHEM 1B-2
3
3
HKDSE-S6 CHEM 1B-3
2020
2
2
4 © 2019
HKDSE-S6 CHEM 1B-4
(i) FeS2
(1) FeS2 FeS2 (III)
O = 16.0S = 32.1Fe = 55.8)
3
5
HKDSE-S6 CHEM 1B-5
2020
3.
1
6 © 2019
HKDSE-S6 CHEM 1B-6
(1)
7
HKDSE-S6 CHEM 1B-7
2020
(a)
8 © 2019
HKDSE-S6 CHEM 1B-8
9
HKDSE-S6 CHEM 1B-9
2020
(a)
2
10 © 2019
HKDSE-S6 CHEM 1B-10
2 5.0 cm3 50.0 cm3
3
4
Ba(OH)2(aq) cm3
11
HKDSE-S6 CHEM 1B-11
2020
1
2
12 © 2019
HKDSE-S6 CHEM 1B-12
3
13
HKDSE-S6 CHEM 1B-13
2
-1-
1 -1- 2.10 g -1- 30.8 °C
2 1 1.78 g 34.4 °C
-1- –2 026 kJ mol–1
-1- = 60.0 = 114.0
(i)
14 © 2019
HKDSE-S6 CHEM 1B-14
2
-1- 3 –2 026
-1- 4 –2 679
-1- 5 –3 332
15
HKDSE-S6 CHEM 1B-15
16 © 2019
HKDSE-S6 CHEM 1B-16
11. 25 °C X Y 25.0 cm3 0.20 mol dm–3
2H2O2(aq) 2H2O(l) +O2(g)
10
20
30
40
50
60
70
80
0 1 2 3 4 5 6 7 8 9 10
X
Y
2
17
HKDSE-S6 CHEM 1B-17
1
18 © 2019
HKDSE-S6 CHEM 1B-18
H2O(l) H+(aq) + OH–(aq)
[H2O(l)] Kc[H+(aq)][OH–(aq)]
25 °C[H+(aq)][OH–(aq)] 1.00 x 10–14 mol2 dm–6
37 °C[H+(aq)][OH–(aq)] 2.40 x 10–14 mol2 dm–6
60 °C[H+(aq)][OH–(aq)] 9.31 x 10–14 mol2 dm–6
(a)
2
19
HKDSE-S6 CHEM 1B-19
(i)
20 © 2019
HKDSE-S6 CHEM 1B-20
A C DC7H14O2 H2O
(a) A B
21
HKDSE-S6 CHEM 1B-21
O
OH
OH
O
3
22 © 2019
HKDSE-S6 CHEM 1B-22
•
•
23
HKDSE-S6 CHEM 1B-23
2020
7
2020
21 39 57 89
24 42 74
25 43 75
26 44 76
27 45 77
102 1
C s
R a
PPaper 1B 2019(C).indd 24 11/12/2019 9:55