Question

why sodium thiosulfate equivalent number is 1?​

Answer 1

Answer:

The oxidation state of oxygen is -2 and sodium is +1. The oxidation state of sulphur is +2 in sodium thiosulphate. ... Therefore, each mole of sodium thiosulphate involves in 1-mole charge transfer so the number of equivalents in one mole of sodium thiosulphate is 1.

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Answer 2

Answer:

• As sodium thiosulphate contains 2 sulphur atoms electrons lost by each mole of sodium thiosulphate will be $2\times \frac { 1 }{ 2 } \quad =\quad 1$. Therefore, each mole of sodium thiosulphate involves in 1-mole charge transfer so the number of equivalents in one mole of sodium thiosulphate is 1.