The ionic formula for the reaction is as follows: S2O82 - (aq) + 2I- (aq) → 2SO42- (aq) + I2 (aq) However, in launch to measure the couch of reaction, sodium thiosulphate and starch are added. Sodium thiosulphate is added to react with a certain amount of iodine as it is made. Without the thiosulphate, the solution would go game blue/black immediately, due to the iodine and starch. The thiosulphate ions take into account the rate of reaction to be determined by delaying the reaction so that it is...If you want to get a full essay, order it on our website: OrderCustomPaper.com
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