ELECTROCHEMISTRY

electrochemistry

• is the study of electron movement in an oxidation or reduction reaction at a polarized electrode surface

• focused on the relationship between electrical energy and chemical reactions

anode

• where electron flows

cathode

• where electrons are accepted

reference electrode

• electrode with a constant voltage

• serve as reference potential against unknown voltage

analytical electrode

• measuring electrode

ph electrode

• measure hydrogen ion activity

pco2 electrode

• ph electrode with a co2 permeable membrane and bicarbonate buffer

• serving haus electrode

po2 electrode

• measures current flow produced from loss or gain of electrons

ion selective electrodes

• composed of an electrochemical half cell and an ion specific membrane

sodium electrode

• 300x sensitive than potassium

potassium electrode

• with valinomycin, 1000x sensitive than sodium

calcium electrode

• does not have specific value but measures the concentration of ionized