Concentration As A Variable
Hypothesis: The concentration will change how fast the reaction
happens
Prediction:
I think the magnesium strip will be _____________ as the concentration
____________.
Variables
Variable
Independent
(I change)
In my experiment
Dependent
(Measure)
Control
(Keep the same)
Method
Results Table
Volume Acid
(cm3)
Time it takes
Volume Concentration of
Volume of for the cross
of Water Sodium
Acid (ml) to disappear
(ml)
Thiosulphate (M)
(s)
5
15
0.25
5
10
10
0.5
5
15
5
0.75
5
20
0
1.0
5
Conclusion:
As the concentration of acid increased the time the reaction took
This is because
Other variable that could affect the results are
1.
2.
3.