pH Scale
pH Scale: Overview
This topic covers concepts such as pH Scale, Expression for pH, Expression for pOH, Relation between pH and pOH, Calibration of pH Scale, pH Values of Common Substances and Calculation of pH of solutions.
Important Questions on pH Scale
1 M NaCl and 1 M HCl are present in an aqueous solution. The solution is –





How many types of calibration can be done in a pH meter?

If the ion concentration in the blood is times greater than that in the spinal fluid , Round off the value of to one decimal and report the value of

If the hydroxide ion concentration of a solution of is
Report the value of A by multiplying with10 and rounding off to two significant figures.



When rain is accompanied by a thunderstorm, the collected rain water will have value

Define the pH of a solution. What is the pH of pure water?

How many times a strong monobasic acid solution should be diluted so that pH of the resulting solution is tripled?



Which of the following type of medicine is used to treat indigestion?

Which of the following is a characteristic of 'strong acids'?


The substances whose odour changes in the acidic or basic media are known as _____ indicators.

Which of the following can be used as an acid-base indicator by a visually impaired student?
