Question

2.Discuss Working and Calibration of pH meter​

Answer 1

Answer:

A pH meter is an electronic device that measures the acidity or alkalinity of substances. Calibration of a pH meter must be completed before use.

1) Examine the pH electrode

First, check the pH electrode for contamination or damage. If it’s damaged, then fix it or toss it. If it’s just dirty, then use the cleaning solution according to its directions.

2) Flush the pH sensor

Next, flush your sensor with distilled water. We can do this, even if we didn’t have to clean it, to rinse away anything that may contaminate the buffer solution you’ll use in Step 3After flushing, dab or pat away excess water with the paper towels.

3) Immerse the pH electrode

Fill a beaker with your first buffer solution, then immerse your electrode in it

4) Calibrate the pH meter

Now we can start your calibration/adjustment. Keep an eye on the stability of the value; an old pH meter might react sluggishly.

5) Rinse the pH sensor and repeat

Flush the pH sensor with distilled water again, then immerse it in another clean beaker with the second buffer solution.