How well can you read a graph??? Oxygen gas (O:) can be generated by the reaction of Hydrogen
Peroxide (H,02 ) with Manganese Dioxide (MnO:).
27,0, + MnO, 28,0 + Mn +20,
A chemistry student sets up nine (9) test tubes and places different
masses of MnO, in each fest tube. An equal amount of H, O, is
added to each test tube and the volume of O, gas produced is
measured each minute for five minutes. The data from the
experiment is:
1 2 3 4 5 6
1 min (ml)
1.4
2.8
5 min (ml)
4.9
Tube
1
2
3
4
5
6
7 7
8
Mno, id
0.1
0.2
0.3
0.5
1.0
1.5
2.0
2.5
5.9
8.5
11.0
12.0
13.6
2 min (mlo,
2.6
4.6
7.2
8.5
12.4
14.8
17.0
19.0
21.8
3 min (ml)
3.5
5.8
8.8
10.4
14.4
17.5
20.2
22.1
25.1
4 min (ml 0,)
4.2
7.1
10.2
11.8
16.1
19.8
22.7
24.7
28.2
5.1
7.6
11.3
13.3
17.1
21.8
24.8
27.3
30.4
9
3.0
16.2
Graph data for Tubes 1, 3, 5, 7, and 9