Standardization of Sodium Thiosulfate Solution Primary Standard used: Potassium Dichromate  Formula mass of 1o standard: __________________ % Purity of 1o standard:  99.80%   Trials 1 2 3 Weight of K2Cr2O7 (g)Weight of K2Cr2O7 (g) 0.0315  0.0331  0.0380 Final Volume Reading Na2S2O3 (ml)  27.50  27.50  34.90 Initial Volume Reading Na2S2O3 (ml)  1.10  0.00  1.00 Net Volume Na2S2O3 used (ml)       Molarity of Na2S2O3

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Chapter11: Properties Of Solutions
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Standardization of Sodium Thiosulfate Solution

Primary Standard used: Potassium Dichromate

 Formula mass of 1o standard: __________________

% Purity of 1o standard:  99.80%

 

Trials 1 2 3
Weight of K2Cr2O7 (g)Weight of K2Cr2O7 (g) 0.0315  0.0331  0.0380
Final Volume Reading Na2S2O3 (ml)  27.50  27.50  34.90
Initial Volume Reading Na2S2O3 (ml)  1.10  0.00  1.00
Net Volume Na2S2O3 used (ml)      
Molarity of Na2S2O3      
       
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