Q1 of 28 Page 2

What is pH?

pH is the measure of acidity or alkalinity of a sample. The pH is defined as the negative logarithm of the hydrogen ion concentration in mole per liter.

•For acidic solution, pH < 7


•For basic/alkaline solution, pH > 7


•For neutral solution, pH = 7


More from this chapter

All 28 →
1

AIM:

To find the pH of the following samples by using pH paper/universal indicator:


(a) Dilute hydrochloric acid (HCl)


(b) Dilute sodium hydroxide (NaOH) solution


(c) Dilute ethanoic acid (CH3COOH) solution


(d) Lemon juice


(e) Water


(f) Dilute hydrogen carbonate (NaHCO3) solution

 2

What are the different characteristics of the solution (by pH), explain them and give two examples each?

 3

Give two examples of natural and synthetic Indicator:

 4

Using any for indicator differentiate acid, base and neutral solution?