AL
Chemistry Experiment Report Sheet
Experiment
9: Rate of Chemical Reaction
Name:
______________________ ( ) Form
6 S
I. To
investigate effect of surface area on the rate of a reaction – Action of dilute
hydrochloric acid on marble chips
Results Table 9a
Mass of marble chips / g
|
|
|
Mass of
conical flask + dilute hydrochloric acid / g |
|
|
Total
mass of conical flask + acid + marble chips / g |
|
|
Time /
min. |
0.0 |
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
3.5 |
4.0 |
4.5 |
Mass / g
|
|
|
|
|
|
|
|
|
|
|
|
Total
loss in mass / g |
|
|
|
|
|
|
|
|
|
|
|
Time /
min. |
5.0 |
5.5 |
6.0 |
6.5 |
7.0 |
7.5 |
8.0 |
8.5 |
9.0 |
9.5 |
|
Mass / g |
|
|
|
|
|
|
|
|
|
|
|
Total
loss in mass / g |
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Results Table 9b
Mass of crushed marble chips / g
|
|
|
Mass of
conical flask + dilute hydrochloric acid / g |
|
|
Total
mass of conical flask + acid + crushed marble chips / g |
|
|
Time /
min. |
0.0 |
0.5 |
1.0 |
1.5 |
2.0 |
2.5 |
3.0 |
3.5 |
4.0 |
4.5 |
Mass / g
|
|
|
|
|
|
|
|
|
|
|
|
Total
loss in mass / g |
|
|
|
|
|
|
|
|
|
|
|
Time /
min. |
5.0 |
5.5 |
6.0 |
6.5 |
7.0 |
7.5 |
8.0 |
8.5 |
9.0 |
9.5 |
|
Mass / g |
|
|
|
|
|
|
|
|
|
|
|
Total
loss in mass / g |
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Title of graph:
_____________________________________________________
II. To
investigate effect of concentration on the rate of a reaction – Reaction
between sodium thiosulphate solution and dilute hydrochloric acid
Results Table 9c
|
Volume
of thiosulphate solution / cm3 |
Volume
of water added / cm3 |
Time / s |
1/time /
s-1 |
|
50 |
0 |
|
|
|
40 |
10 |
|
|
|
30 |
20 |
|
|
|
20 |
30 |
|
|
|
10 |
40 |
|
|
Title of graph:
_____________________________________________________
III. To
investigate effect of temperature on the rate of a reaction – Reaction between
sodium thiosulphate solution and dilute hydrochloric acid
Results Table 9d
|
Temperature
of reaction mixture / oC |
Time / s
|
1/time /
s-1 |
|
50 |
|
|
|
40 |
|
|
|
30 |
|
|
|
20 |
|
|
|
10 |
|
|
Title of graph: _____________________________________________________
IV. To
investigate effect of a catalyst on rate of decomposition of hydrogen peroxide
Results Table 9e
Time
|
Volume of oxygen evolved / cm3 |
|
|
0.5 g
MnO2 added |
2 g MnO2
added |
|
|
15 s |
|
|
|
30 s |
|
|
|
45 s |
|
|
|
1 min |
|
|
|
1 min 15 s |
|
|
|
1 min 30 s |
|
|
|
1 min 45 s |
|
|
|
2 min |
|
|
|
2 min 30 s |
|
|
|
3 min |
|
|
|
3 min 30 s |
|
|
|
4 min |
|
|
|
4 min 30 s |
|
|
|
5 min |
|
|
Title of graph:
_____________________________________________________
V. Discussion:
