Why are some lakes more acidic than others

Why are some lakes more acidic than others  

Acid rain is the major cause of acidity in open-air lakes and ponds (see p. 237). Various natural oxides such as CO2 dissolve in water 

Pollutant gases include S02, S03, NO and N02. It is now common to write SOx and NOx to indicate this variable valency within the mixture. 

A buffer comprises (1) a weak acid and a salt of that acid, (2) a weak base and a salt of that base, or (3) it may contain an acid salt. We define an acid-base buffer as a solution whose pH does not change after adding (small amounts of) a strong acid or base . Sodium ascorbate is a favourite buffer in the food industry. 

We can think of water entering the lake in terms of a titration. A solution of alkali enters a fixed volume of acid the alkaline solution is water entering from the lake s tributary rivers, and the acid is the lake, which contains the weak acid H2CO3 (carbonic acid) deriving from atmospheric carbon dioxide. The alkali in the tributary rivers is calcium hydroxide Ca(OH)2, which enters the 

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