Determination of pH

DETERMINATION OF pH

The acidic or basic property of substances is measured in terms of pH. It is a measurement of the hydrogen ion concentration. pH is defined as the negative logarithm (base 10) of hydrogen ion concentration.

​Definition of pH

​pOH is used to measure the concentration of hydroxyl ions (OH- ions) or the alkalinity of a solution. pOH is defined as the negative logarithm (base 10) of hydroxyl ion concentration.

​Defintion of pOH

Multiple Choice

pOH is negative logarithm of ________________concentration.

• Hydrogen ion

• Hydroxyl ion

• Carbonium ion

• Formyl ion

​•pH of a solution is measured using pH indicators.

•pH indicators are substances that changes colour when in contact with acidic, basic or neutral solutions.

Measurement of pH

Open Ended

Give few words about pH indicators,

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