How can you obtain potassium dichromate from sodium chromate?
Solution and Explanation
Potassium dichromate (K2Cr2O7) can be obtained from sodium chromate (Na2CrO4) through the following reactions:
- 2Na2CrO4 + 2H+ → Na2Cr2O7 + 2Na+ + H2O
- Na2Cr2O7 + 2KCl → K2Cr2O7 + 2NaCl
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