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2. Copper–copper (II) sulfate electrode - Wikipedia

   en.wikipedia.org/wiki/Copper–copper(II)_sulfate...

   The copper–copper(II) sulfate electrode is a reference electrode of the first kind, [1] based on the redox reaction with participation of the metal and its salt, copper(II) sulfate. It is used for measuring electrode potential and is the most commonly used reference electrode for testing cathodic protection corrosion control systems. [2]

3. Daniell cell - Wikipedia

   en.wikipedia.org/wiki/Daniell_cell

   Daniell cells, 1836. The Daniell cell is a type of electrochemical cell invented in 1836 by John Frederic Daniell, a British chemist and meteorologist, and consists of a copper pot filled with a copper (II) sulfate solution, in which is immersed an unglazed earthenware container filled with sulfuric acid and a zinc electrode.

4. Half-reaction - Wikipedia

   en.wikipedia.org/wiki/Half-reaction

   Galvanic cell. Consider the Galvanic cell shown in the adjacent image: it is constructed with a piece of zinc (Zn) submerged in a solution of zinc sulfate (ZnSO 4) and a piece of copper (Cu) submerged in a solution of copper(II) sulfate (CuSO 4). The overall reaction is:

5. Reference electrode - Wikipedia

   en.wikipedia.org/wiki/Reference_electrode

   The overall chemical reaction taking place in a cell is made up of two independent half-reactions, which describe chemical changes at the two electrodes. To focus on the reaction at the working electrode , the reference electrode is standardized with constant (buffered or saturated) concentrations of each participant of the redox reaction.

6. Galvanic cell - Wikipedia

   en.wikipedia.org/wiki/Galvanic_cell

   A specific example is the Daniell cell (see figure), with a zinc (Zn) half-cell containing a solution of ZnSO 4 (zinc sulfate) and a copper (Cu) half-cell containing a solution of CuSO 4 (copper sulfate). A salt bridge is used here to complete the electric circuit.

7. Cell notation - Wikipedia

   en.wikipedia.org/wiki/Cell_notation

   In electrochemistry, cell notation or cell representation is a shorthand method of expressing a reaction in an electrochemical cell.. In cell notation, the two half-cells are described by writing the formula of each individual chemical species involved in the redox reaction across the cell, with all other common ions and inert substances being ignored.