Question

finding the ph of the following sample by using ph paper \universal indicator _ dilute hydrocloric acid ,dilute NaoH solution dilute ethonic acid solution, lemon juice , water ,dilute Hydrogen carbonate solution​

Answer 1

dilute hydrochloric acid give a dark red  colour and its pH number is 2

dilute NaOH gives gives a blue colour and its pH number is about 13

dilute ethonoic acid gives pirple colour and its pH number is 11.

Lemon juice gives orange colour and its pH number is 3.

water gives no colour its pH number is 7

Dilute hydrogen carbonate gives

dark green colour and its pH number is 9