Finding the ph of the samples by using ph paper/universal indicator:-
Answers
Explanation:
To find the pH of the following samples by using pH paper/universal indicator: Dilute Hydrochloric Acid, Dilute NaOH solution, Dilute Ethanoic Acid solution, Lemon juice, Water and Dilute Sodium Bicarbonate solution. The pH is the measure of the acidic (or basic) power of a solution.
The pH of an aqueous solution is the measure of how acidic or basic it is. The pH of an aqueous solution can be determined and calculated by using the concentration of hydronium ion concentration in the solution.
Find the pH of a substance using pH paper. Dip the end of the pH strip into the chemical or substance you want to test. After a couple of seconds, remove the paper and compare the color of the pH strip to the color chart provided with the pH paper kit. Do not re-use a pH paper to retest or test another chemical.
A universal indicator is a pH indicator made of a solution of several compounds that exhibits several smooth colour changes over a wide range pH values to indicate the acidity or alkalinity of solutions. ... Wide-range pH test papers with distinct colours for each pH from 1 to 14 are also available.