79. Solving a chemistry problem

79. Solving a chemistry problem

2. To standardize the Na2S2O3 solution, a sample of KCrO7 weighing 0.1510 g was dissolved in dilute HCl, an excess of KI was added, and the released I2 was titrated, using 46.1 cm3 of sodium thiosulfate solution. Calculate the molar concentration of Na2S2O3 equivalent.

Additional information:

If the file does not open for you, install the Rar archiver program. Inside the archive, the solution is in WORD format.