true or false _ When concentration has unit of mol/L, its activity has the same unit.  Further,  usually the value of activity is smaller than that of the corresponding concentration.   6  __ Because of the Zwitterion structure,  amino acids are usually considered as diprotic or even triprotic acids.   7.__ The fractional composition of any species from the dissociation of a weak acid always depends on the              solution pH.

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Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.