Relation Between , and pH

In autoprotolysis (also called self-ionization), one substance acts as both an acid and a base  

SOLUTION and OH are produced in a 1 1 mole ratio in Reaction 8-lb. Calling each concentration x, we write 

Baking soda-Lake Ontario Human urine 

Theoretical pure rain, pH 5.6 Most fish species die, pH 4.5-5.0 Vinegar 

Most acidic rainfall recorded in U.S. at Wheeling, WV - Battery acid 

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