Sodium Thiosulphate Lab Report
Results
Table 1: Experimental results for part A Trial 1(L) Trial 2(L) Trial 3(L) Trial 4(L) Trial 5(L)
Initial Reading 0 0 0 0.4 0.9
Final Reading 19.7 19.1 18.9 19.7 19.9
Titre Value 19.7 19.1 18.9 19.3 19
Table 1 above displays the titres obtained during 5 trials in part A of this assay.
The titre values procured in trial 2, trial 3 and trial 5 manifests an agreement within 0.1mL. However, the result achieved in trial 1 and 4 are outliers because of their distance from other observations.
Table 2: Experimental results for part B Trial 1(L) Trial 2(L) Trial 3(L)
Initial Reading 1 10 0.4
Final Reading 10 18.9 9.3
Titre 9 8.9 8.9
Table 2 above displays the titres obtained during 3 trials in part B of this experiment.
The results procured …show more content…
The moles of sodium thiosulphate can be determined using the average titre values and its concentration. When calculating the average titre values, the outliers are ignored because they are mainly created by errors and their great difference from the titres achieved in other trials will pose a great impact to the accuracy of the final result. n=v × c
Where ‘n’ is the moles of sodium thiosulphate, ‘v’ is the average tire values sodium thiosulphate, and ‘c’ is its concentration. The value was found out to be 3.2 × 〖10〗^(-4) …show more content…
In this experiment, both experimenters will read the value together in every step in which reading was required, and an agreement will be reached by both experimenters for every value recorded.
The untimely detection of the end point will cause disparity of the titres recorded every trial, and affect the precision of the final result achieved by this assay. During this experiment, the solution in the burette was added dropwise with the conical flask constantly swirled when the end point was reached so that the end point was more easily detected.
The imperfect rinsing of apparatus will imperceptibly affect when the end point is going to occur, and subsequently influence the titre values recorded. This experiment reduced this error by rinsing the equipment as appropriately as possible. Some equipment such as pipette and burette were rinsed by distilled water and the solution to be contained
Table 1: Experimental results for part A Trial 1(L) Trial 2(L) Trial 3(L) Trial 4(L) Trial 5(L)
Initial Reading 0 0 0 0.4 0.9
Final Reading 19.7 19.1 18.9 19.7 19.9
Titre Value 19.7 19.1 18.9 19.3 19
Table 1 above displays the titres obtained during 5 trials in part A of this assay.
The titre values procured in trial 2, trial 3 and trial 5 manifests an agreement within 0.1mL. However, the result achieved in trial 1 and 4 are outliers because of their distance from other observations.
Table 2: Experimental results for part B Trial 1(L) Trial 2(L) Trial 3(L)
Initial Reading 1 10 0.4
Final Reading 10 18.9 9.3
Titre 9 8.9 8.9
Table 2 above displays the titres obtained during 3 trials in part B of this experiment.
The results procured …show more content…
The moles of sodium thiosulphate can be determined using the average titre values and its concentration. When calculating the average titre values, the outliers are ignored because they are mainly created by errors and their great difference from the titres achieved in other trials will pose a great impact to the accuracy of the final result. n=v × c
Where ‘n’ is the moles of sodium thiosulphate, ‘v’ is the average tire values sodium thiosulphate, and ‘c’ is its concentration. The value was found out to be 3.2 × 〖10〗^(-4) …show more content…
In this experiment, both experimenters will read the value together in every step in which reading was required, and an agreement will be reached by both experimenters for every value recorded.
The untimely detection of the end point will cause disparity of the titres recorded every trial, and affect the precision of the final result achieved by this assay. During this experiment, the solution in the burette was added dropwise with the conical flask constantly swirled when the end point was reached so that the end point was more easily detected.
The imperfect rinsing of apparatus will imperceptibly affect when the end point is going to occur, and subsequently influence the titre values recorded. This experiment reduced this error by rinsing the equipment as appropriately as possible. Some equipment such as pipette and burette were rinsed by distilled water and the solution to be contained