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Why acidified the yellow (Na2CrO4) solution with CH3COOH?

Why acidified the yellow (Na2CrO4) solution with CH3COOH?

Grade:12th pass

1 Answers

karan singh panwar
19 Points
6 years ago
Actually this process is a part of preparation of K2Cr2O7. When Na2CrO4 is acidified CrO4(2-) ion disproportionate into Cr2O7(2-) ion. Hence Na2CrO4 converts into Na2Cr2O7 which can be then converted into K2Cr2O7.

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