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What is the Na2S2O3 wt% in sodium thiosulfate pentahydrate solid how to calculate it

Accepted Answer

The wt% of Na2S2O3 in sodium thiosulfate pentahydrate can be calculated using the following formula:

wt% Na2S2O3 = (mass of Na2S2O3 / mass of sodium thiosulfate pentahydrate) x 100%

The molar mass of Na2S2O3 is 158.11 g/mol, and the molar mass of sodium thiosulfate pentahydrate is 248.18 g/mol. So, the mass of Na2S2O3 in 1 mole of sodium thiosulfate pentahydrate is 158.11 g/mol.

Therefore, the wt% of Na2S2O3 in sodium thiosulfate pentahydrate is:

wt% Na2S2O3 = (158.11 g/mol / 248.18 g/mol) x 100% = 63.72%

So, the wt% of Na2S2O3 in sodium thiosulfate pentahydrate is 63.72%.

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