Monday, November 16, 2015

FUNDAMENTALS OF BIOCHEMICAL ENGINEERING

                                           

         FUNDAMENTAL OF BIOCHEMICAL ENGINEERING


pH-

pH is a Measurement of acidity or alkalinity of water soluble substances.The pH scale measures how acidic or basic a substance is and ranges from 0 to 14. A pH less then 7 is acidic and a pH greater then is Basic.


pH SCALE

The pH  scale is used for a Measurement of Acidity or the concentration of H+ ions in aqueous medium.


BUFFER

A Buffer solution is typically made by mixing a weak acid and one of its salts or mixing a weak base with one of its salts.

OR

A buffer is a solution containing either a weak acid and its salt or a weak base and its salt, which is resistant to changes in pH.


ACID

Acids that taste sour,such as vinegar,which is a dilute solution of acetic acid. the solution have a pH of less than 7.

" If a solution contains more H+ than OH- ions, then its acidic.


BASE

Base are characterized by bitter taste  and slippery feel. The pH Basic Solution at standard conditions is greater than Seven.

"If a solution contains more OH- than H+ ions, then its is basic.






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