Procedure

Steps to perform the experiment:

• Take six strips pH paper and place them on a glazed tile. Mark them 1 to 6.

• Take the test solutions in separate test tubes. Dissolve the solid substance by adding distilled water to it. Label the test tubes.

• Now, place a drop of the test solution on one strip of the pH paper with the help of a fine dropper or glass rod. Use a fresh dropper for each test solution.

• Observe the colour produced and match it with the different colour shades of the standard colour pH chart.

• Note down the colour of the pH from the colour chart that matches most closely with the colour produced on the pH paper.

• Similarly, find the pH value of the remaining samples by using a fresh strip of pH paper and a separate glass rod or fine dropper for each one.