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chemisty

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What would happen if you reacted potassium dicarbonate with HCL and NaOH?

  • chemisty -

    The question is a little confusing. I don't know what potassium dicarbonate is. Potassium carbonate is K2CO3.

  • chemisty -

    oops sorry :S I meant Cromate. Potassium Dichromate. In a lab that I did I mixed 0.1 M K2CrO4 with 2 drops of NaOH and I added Ba(NO)2 until I noticed a color change. When I did this, the K2CrO4 which was initally yellow formed a white precipitate and on the top there was clear orange liquid. Why did that happen? How did the precipitate form?

  • chemisty -

    The ppt is BaCrO4 (I think you mixed it with Ba(NO3)2.
    The orange color comes from the equilibrium between CrO4 ion and Cr2O7^-2. Look up the equilibrium on google. I have problems at home.

  • chemisty -

    Thanks :)

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