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This is because of alkaline error above pH of 9.
Alkaline Error is a systematic error that occurs when glass electrodes are used to read the pH of an extremely alkaline solution (pH above 9); the electrode responds to sodium ions as though they were hydrogen ions, giving a pH reading that is consistently too low.
However it is now possible to purchase [H electrodes made from special glass that can be used above pH 9.
What else can I help you with?
Which electrode is used in pH meter?
A glass electrode is commonly used in a pH meter to measure the pH of a solution. The electrode contains a special glass membrane that responds to changes in hydrogen ion concentration in the solution.
What is glass electrode?
A glass electrode is made of a doped glass membrane and is an electrode which is ion-selective.
Describe construction of glass electrode?
The glass electrode is made in such a way that it is only sensitive to the specific ion.
Is a glass jar a solution?
A glass jar is not a solution in the scientific sense. A solution is a homogeneous mixture where one substance dissolves in another substance. A glass jar is simply a container made of glass.
The principles of pH meter?
When you place the PH electrode in a PH unknown solution you'll find that an electrical potential difference is produced. THIS IS DUE TO: Difference of H+ ion concentration between the test solution and the glass bulb electrode (part of PH electrode that is sensitive to H+ ion concentration) After that the potential difference of the reference electrode (another part of PH electrode) is measured and compared to the potential of the glass bulb electrode by means of a meter. results are read from 0-14 The porous glass of the electrode prevents the H+ ions to diffuse from both sides, but allows the exchange of Na+ ions (contained in the silicates of the glass) with the external solution, for keeping the continuity ot this electrical system. The H+ activity difference between the solution inside the electrode and the external one is measured as electric potential difference, then, converted in pH units (0-14) by the instrument.
How does a pH electrode work to measure the acidity or alkalinity of a solution?
A pH electrode works by measuring the electrical potential difference between a reference electrode and a glass electrode. The glass electrode is sensitive to hydrogen ions in the solution, which determines the acidity or alkalinity. The pH value is calculated based on this potential difference.
How does a pH electrode work?
A pH electrode works by measuring the electrical potential difference between a reference electrode and a glass electrode. The glass electrode contains a special membrane that responds to changes in hydrogen ion concentration, which is used to determine the pH of a solution.
Which electrode is used in pH meter?
A glass electrode is commonly used in a pH meter to measure the pH of a solution. The electrode contains a special glass membrane that responds to changes in hydrogen ion concentration in the solution.
What is glass electrode?
A glass electrode is made of a doped glass membrane and is an electrode which is ion-selective.
How do pH electrodes work to measure the acidity or alkalinity of a solution?
pH electrodes work by measuring the electrical potential difference between a reference electrode and a glass electrode in contact with the solution. The glass electrode responds to the hydrogen ion concentration in the solution, which is directly related to its acidity or alkalinity. The pH value is then calculated based on this potential difference, providing a measure of the solution's acidity or alkalinity.
What type of electrodes are used in potentiometric titration?
Potentiometric titration is a method to detect potential difference between the indicator electrode and reference electrode and thus determine concentration of chemical component, which reacts with reagent added to a solution potentially in equilibrium at the beginning.The popularly used reference electrode is either silver-silver chloride or mercury sulfate electrode, and the indicator electrode is generally made of glass electrode, platinum electrode and silver electrode or ion selective electrode.
What type of electrodes use in pH meter?
pH meters typically use glass electrodes to measure the pH of a solution. These electrodes are sensitive to changes in hydrogen ion concentration and provide accurate pH readings. Additionally, reference electrodes are used in combination with the glass electrode to ensure reliable and consistent measurements.
What are the advantages of using glass electrode for determining pH of solution?
Glass electrodes are highly accurate and have a fast response time, making them ideal for pH measurements. They are also durable and resistant to chemical corrosion, allowing them to be used with a wide range of solutions. Additionally, glass electrodes are easy to maintain and calibrate, making them a popular choice for pH measurement applications.
Describe construction of glass electrode?
The glass electrode is made in such a way that it is only sensitive to the specific ion.
What are the parts pH meter?
A pH meter typically consists of a probe with a glass electrode, a reference electrode, and a meter that displays the pH value. The glass electrode measures the hydrogen ion concentration in a solution, while the reference electrode provides a stable reference point. The meter then calculates and displays the pH value based on the difference in electrical potential between the two electrodes.
Constructional diagram for glass electrode?
YES
What are the Types of ion selective electrodes?
There are several types of ion-selective electrodes including glass membrane electrodes, liquid ion-exchange electrodes, solid-state ion-selective electrodes, and gas-sensing electrodes. Each type is designed to selectively detect and measure specific ions in a solution based on their electrochemical properties.
