Why Does Citric Acid Produce Electricity?

Citric Acid

Acetic Acid

Acids

Chemistry

Is citric acid a strong electrolyte or is acetic acid?

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1 Answer

Charles Kirkpatrick

Charles Kirkpatrick , Department of Chemistry at Saint Louis University (1984-present)

Both are weak acids, which means they partially dissociate in water. This means the are weak electrolytes. Strong acids (e.g. HCl) dissociate completely in water and are strong electrolytes.

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Why Does Citric Acid Produce Electricity?

By Angela Libal; Updated April 24, 2017

Citric acid can conduct an electrical current between metal terminals.

lcsatlos/iStock/Getty Images

Citric acid does not produce electricity by itself. Rather, this weak acid turns into an electrolyte — an electrically conductive substance — when it’s dissolved in fluid. The charged ions of the electrolyte allow electricity to travel through the fluid.

Citric Acid Conduction

Acids are electrolytes because they break into negatively charged anions and positively charged cations when they’re placed in solution. The electrolytic solution then conducts electricity when the anions migrate toward a positive terminal, made of a positively charged metal, that’s placed in the solution and the cations migrate toward a negative terminal, made of a negatively charged metal. When they reach the terminals, the anions take electrons from the positive metal and the cations lose electrons to the negative metal. This electron exchange produces the electrical charge. The terminals must be made of two different types of metal, such as steel and copper, for the reaction to occur.

References

  • University of California, Santa Barbara, ScienceLine: How Does Lemon Juice Produce Electricity, or Electrolytes?
  • Encyclopedia Britannica: Electrolyte
  • University of Georgia Department of Geology: Cations and Anions 1: Definitions

About the Author

Angela Libal began writing professionally in 2005. She has published several books, specializing in zoology and animal husbandry. Libal holds a degree in behavioral science: animal science from Moorpark College, a Bachelor of Arts from Sarah Lawrence College and is a graduate student in cryptozoology.

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Question: Is citric acid a strong electrolyte?



Is citric acid a strong electrolyte?

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