A 250.0 cm3 stock solution contains thiosulfate ions. 20.00 cm3 individual samples, after Br2 treatment were titrated with NaOH. The average consumption was 6.53 cm3. The NaOH concentration was 0.1009 mol/dm3. How many mg of Na2S2O3 was in the stock solution? M.r. (Na2S2O3) = 158.11 g/mol

Q: Calculate

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".