Study Set Content:
Reference solution
Filling solution
Plastic tube
porous plug
ph senstive glass membrane
designed as a three-in-one combination, consists of a glass electrode, reference electrode, and temperature probe.
Probe
One end of the probe consists of a sensitive tip glass that detects the solution’s () In contrast, another end of the probe is connected to the electronic meter that measures and displays the ().
acidity or alkalinity., pH value
The temperature detector in a probe helps to detect the() of the solution
temperature
The pH value of the test or buffer solution should be only measured at
room temperature (i.e., 25°C).
It is a narrow tube-like structure usually made up of glass consisting of a highly sensitive glass bulb at the end.
.Glass electrode:
 also includes a () as an electrode
silver wire coated with silver chloride immersed in an electrolyte (potassium chloride pH 7)
The glass electrode helps measure () across the glass membrane
potential changes
: It is a glass tube-like structure consisting of a metallic conductor made of silver chloride immersed in an electrolyte solution, potassium chloride of pH 7
.Reference electrode:
This electrode only comes in contact with the test solution through a
ceramic junction.
The reference electrode is used to provide a stable() connection and helps to complete the circuit. Therefore, it is insensitive to the solution’s pH.
zero voltage
t is attached to the pH electrode that can measure minimal differences in electrical potential in a circuit.
Electrometer/Voltmeter
It is an opening used to refill the electrolyte.
Filling hole
Reference Electrode
Saturated Calomel Electrode (SCE)
Silver/Silver Chloride (Ag/AgCl)
composed of mercurous chloride (Hg2Cl2 , calomel) in contact with a mercury pool.
Saturated Calomel Electrode (SCE)
These components are either layered under a saturated solution of () or within a fritted compartment surrounded by the saturated KCl solution (called a ()).
potassium chloride (KCl), double-junction arrangement
