Importance of pH value
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Answer:
to check acidic or basic nature
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pH values gives a lot of information about the substance. It shows different colours at the different values of pH.
Explanation:
- pH value depends upon the number of Hydrogen ions in the solution.
- The pH values are measured from 0 to 14.
- The pH of substance like pure water is 7, which is a neutral value.
- The pH of acids like hydro-chloric acid, sulphuric acid it is less than 7.
- The pH of base like sodium hydroxide is more than 7.
- The letter p in pH is a German word which means 'potenz' and H denotes the concentration of hydrogen ions.
learn more about pH
Why glass electrode cannot be used for solution of ph above 9.0?
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Calculate the pH of a 2 L solution containing 10 mL of 5 M acetic acid and 10 mL of 1 M sodium acetate. The pKa for acetic acid is 4.76.
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