Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

Trending News

Promoted
Adam Hess
Lv 4
Adam Hess asked in Science & MathematicsChemistry · 7 years ago

How does Potassium Carbonate (K2CO3) and Potassium Bicarbonate (KHCO3) make a good buffering solution? What are the chemical equations?

1 Answer

Relevance
  • pisgahchemist
    Lv 7
    7 years ago
    Favorite Answer

    A buffer is a mixture of a weak acid and its conjugate base. HCO3^- is the weak acid, and CO3^2- is the conjugate base. But for significant amounts of carbonate ion to exist, the solution will have a relatively high pH.

    HCO3^- + OH- <==> H2O + CO3^2-

    weak acid ............... ............. conjugate base

Still have questions? Get your answers by asking now.