Question

finding the pH of the following sample by using ph paper/universal indicator (I) Dilute hydrochloric acid (ii) Dilute NaOH solution (iii) Dilute Ethanoic acid solution ( iv) Lemon juice (v) water ( vi) Dilute hadrogen carbonate solution with digarm​

Answer 1

1. i think this will help you

Answer 2

The ph value of the following samples are given:

Explanation:

• The ph of the Dilute hydrochloric acid solution is 1, the colour of the ph paper is red. It means strong acid.
• The ph of the Dilute NaOH solution is 14, the colour of the ph paper is purple. it means strong alkali.
• The ph of the Dilute ethanoic acid solution is 3, the colour of the ph paper is yellow. it means weak acid.
• The ph of lemon juice is 2, the colour of the ph paper is orange. it means acid.
• The ph of water is 7, the colour of the ph paper is green. it means weak alkali.
• The ph of Dilute hydrogen carbonate is 9, the colour of the ph paper is blue. It means weak alkaline.