Was your calculation for rate of change correct?
Time (min)
0
5
10
15
20
Rate of volume change
(mL/hr)
Tube 1
Green Light
3
3.2
3.4
3.5
3.7
N
Rate of volume change (
Tube 2
Green Control
3
2.7
2.3
2
1.6
Volume 0₂ (mL)
0
Tube 1
Blue Light
3
4.3
5.5
6.7
8
0
final volume(mL)-initial volume(mL)
Time (min)
x 60(-
hr
Tube 2
Blue Control
3
2.7
2.3
2
1.6
0