Question

20 ml of a solution of $K_{2}Cr_{2}O_{7}$ is allowed to react with a saturated solution of KI. The iodine thus liberated reacts completely with 16 ml of M/25 $Na_{2}S_{2}O_{3}$ solution. Calculate the concentration of $K_{2}Cr_{2}O_{7}$ solution in $gL^{-1}$?

Answer 1

Potassium dichromate | K2Cr2O7 or Cr2K2O7 | CID 24502 - structure, chemical 10 to 50 mg/mL at 68° F (NTP, 1992) Mixtures, Components, and Neutralized Forms, 2 records.

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