Results:
Solutions (50ml)
Starting weight with pin (g)
Finishing weight with pin (g)
Difference (g)
Average (g)
Blue
Green
Red
Yellow
White
Blue
Green
Red
Yellow
White
Blue
Green
Red
Yellow
White
Distilled water
0.91
1
0.8
0.93
0.8
0.97
1.03
0.86
0.96
0.84
0.06
0.03
0.06
0.03
0.04
0.04
10% Glucose 0.76
0.8
0.75
0.8
0.87
0.78
0.79
0.74
0.81
0.86
0.02
0.03
-0.01
0.01
-0.01
0.01
10% Salt
0.81
1
0.88
0.97
0.95
0.71
0.91
0.78
0.86
0.83
-0.1
-0.09
-0.1
-0.11
-0.12
-0.1
10% Urea
0.99
0.78
1.04
0.77
0.86
0.91
0.68
0.95
0.69
0.77
-0.08
-0.1
-0.09
-0.08
-0.09
-0.09
10% Sucrose
0.92
0.88
0.88
0.81
0.84
0.91
0.88
0.9
0.79
0.87
-0.01
0
0.02
-0.02
0.03
0.00
10% Ethanol
0.83
0.91
0.75
0.73
0.8
0.85
0.9
0.77
0.74
0.8
0.02
-0.01 …show more content…
This occurred through passive transport and as there is no correlation between each concentration, there is also no pattern to observed. Precision refers to the closeness of two or more measurements together. In the above table, it is evident that the average weight difference for potatoes that were placed in sucrose (0.00g) and glucose (0.01g) are reliable. This can be shown through the increase of 0.01g as seen above. The potato which was placed into the ethanol solution can also be classified as precise, as the average weight difference is identical to that of the weight difference caused the glucose solution. Low levels of precision can be accounted for by random errors. Random errors are errors caused my unpredictable factors such as wind change or a mistake in the method. In this experiment, there are many possible sources of random errors that may have influenced the results and these may have …show more content…
All students recorded having salt and urea solutions as the two that lost the most weight and distilled water gaining the most weight. Figure 1 and figure 3 presented results that showed sucrose having no weight difference before and after experiment. Figure 1 and figure 2 also displayed the ethanol solution having the same effect on the potato (+0.01g weight difference). Despite 1* sharing similarities in their results with 2* and 3*, it is apparent that the results provided by figure 2 and figure 3 are more accurate than the results given by figure 1. This is due to 1* and 2* having their solutions in the same order from lowest, salt to highest, distilled water. This infers that 1* was exposed to systematic errors as their results for sucrose, glucose and ethanol are in different positions between 1-6 when compared to the two other students’
Solutions (50ml)
Starting weight with pin (g)
Finishing weight with pin (g)
Difference (g)
Average (g)
Blue
Green
Red
Yellow
White
Blue
Green
Red
Yellow
White
Blue
Green
Red
Yellow
White
Distilled water
0.91
1
0.8
0.93
0.8
0.97
1.03
0.86
0.96
0.84
0.06
0.03
0.06
0.03
0.04
0.04
10% Glucose 0.76
0.8
0.75
0.8
0.87
0.78
0.79
0.74
0.81
0.86
0.02
0.03
-0.01
0.01
-0.01
0.01
10% Salt
0.81
1
0.88
0.97
0.95
0.71
0.91
0.78
0.86
0.83
-0.1
-0.09
-0.1
-0.11
-0.12
-0.1
10% Urea
0.99
0.78
1.04
0.77
0.86
0.91
0.68
0.95
0.69
0.77
-0.08
-0.1
-0.09
-0.08
-0.09
-0.09
10% Sucrose
0.92
0.88
0.88
0.81
0.84
0.91
0.88
0.9
0.79
0.87
-0.01
0
0.02
-0.02
0.03
0.00
10% Ethanol
0.83
0.91
0.75
0.73
0.8
0.85
0.9
0.77
0.74
0.8
0.02
-0.01 …show more content…
This occurred through passive transport and as there is no correlation between each concentration, there is also no pattern to observed. Precision refers to the closeness of two or more measurements together. In the above table, it is evident that the average weight difference for potatoes that were placed in sucrose (0.00g) and glucose (0.01g) are reliable. This can be shown through the increase of 0.01g as seen above. The potato which was placed into the ethanol solution can also be classified as precise, as the average weight difference is identical to that of the weight difference caused the glucose solution. Low levels of precision can be accounted for by random errors. Random errors are errors caused my unpredictable factors such as wind change or a mistake in the method. In this experiment, there are many possible sources of random errors that may have influenced the results and these may have …show more content…
All students recorded having salt and urea solutions as the two that lost the most weight and distilled water gaining the most weight. Figure 1 and figure 3 presented results that showed sucrose having no weight difference before and after experiment. Figure 1 and figure 2 also displayed the ethanol solution having the same effect on the potato (+0.01g weight difference). Despite 1* sharing similarities in their results with 2* and 3*, it is apparent that the results provided by figure 2 and figure 3 are more accurate than the results given by figure 1. This is due to 1* and 2* having their solutions in the same order from lowest, salt to highest, distilled water. This infers that 1* was exposed to systematic errors as their results for sucrose, glucose and ethanol are in different positions between 1-6 when compared to the two other students’