Question

Write two methods to determine pH of a solution.

Answer 1

we can determine the ph of a solution in two ways:

(i) by using universal indicator

(ii) by using PH meter

Answer 2

Answer:

Two methods to determine pH of a solution are pH meter and pH paper.

Explaination:

pH meter

• pH meter is an electronic device used to measure the pH of a solution accurately. It consists of a glass electrode and a reference electrode, which are inserted into the solution being tested.
• The pH meter measures the difference in electrical potential between the two electrodes and displays the pH value on a digital screen.
• To use a pH meter, the electrode is first calibrated using buffer solutions of known pH values. Once calibrated, the electrode is inserted into the solution being tested, and the pH value is measured.

pH paper

• This method involves the use of pH paper or pH indicators, which are chemical substances that change color depending on the pH of the solution.
• pH paper is a small strip of paper coated with a pH-sensitive dye. When the paper is dipped into a solution, it changes color depending on the pH of the solution.

To learn more about pH indicators, visit

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