22-01-2016, 03:34 PM
Outline
What is ph ?
What is ph meter ?
History
How does pH meter work?
Ph value
Measuring the ph of solution
Maintenance of ph meter
Litmus paper
Quick method for determining ph litmus paper
ph scale another description
Application
Conclusion
Reference
What is pH ?
pH stands for “potential of hydrogen”.
A unit of measure which describes the degree of acidity or alkalinity of a solution.
It is measured on a scale of 0 to 14.
The formal definition of pH is the negative logarithm of the hydrogen ion activity.
pH = -log[H+]
What is a pH Meter?
An instrument that measures the H+ ion concentration (pH) of a solution using an ion sensitive electrode which will ideally respond to one specific ion, in this case H+
A typical modern pH meter has a glass and reference electrode in one tube.
What is ph ?
What is ph meter ?
History
How does pH meter work?
Ph value
Measuring the ph of solution
Maintenance of ph meter
Litmus paper
Quick method for determining ph litmus paper
ph scale another description
Application
Conclusion
Reference
What is pH ?
pH stands for “potential of hydrogen”.
A unit of measure which describes the degree of acidity or alkalinity of a solution.
It is measured on a scale of 0 to 14.
The formal definition of pH is the negative logarithm of the hydrogen ion activity.
pH = -log[H+]
What is a pH Meter?
An instrument that measures the H+ ion concentration (pH) of a solution using an ion sensitive electrode which will ideally respond to one specific ion, in this case H+
A typical modern pH meter has a glass and reference electrode in one tube.