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