Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES) The pH of a buffer solution changes from 6.20 to 6.17 when 0.003 mole of acid is added to 500 mL of the buffer. The buffer capacity of the system is, therefore - Sarthaks eConnect

The pH of a buffer solution changes from 6.20 to 6.17 when 0.003 mole of acid is added to 500 mL of the buffer. The buffer capacity of the system is, therefore

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Buffer capacity = No. of Moles of acid added per litre of buffer / Change in pH

`= 0.006/0.03 =0.2`