Required Practical 3 - PMT
Disappearing cross:Change in rate of the reaction of sodium thiosulphate with hydrochloric acid as temperature is changed: [Na 2 S 2 O 3 + 2HCl → 2NaCl + SO 2 + S + H 2 O] Method Accuracy Explanation 1. Add about 10 cm of 1 moldm -3 hydrochloric acid to the ‘acid’ tube.
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