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Essay Details:
Essay text:
From the experimental result, I can find out the number of mole of the two substances, hence I can calculate the mole ratio of the two substances. After find out the mole ratio, I can balance the equation of the reaction.
And the indicator use in this experiment is starch solution, which is dark blue in colour in the presence of iodine. The disappearance of the dark blue colour is the end point of the titration.
Results
|Weight of Na2S2O3 |3.00g |
| |Trial |1 |2 |3 |
|Final b r | | | | |
|I reading | | | | |
|Volume used/ | | | | |
|Mean vol. | | | | |
Calculation
1.
2.
Discussion
From the results, the ratio of Na to Iodine is 2:1, and the balanced equation is _____...
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