
Interpretation:
The acidic and basic nature should be determined given the resulting solution of the statement.
Concept introduction:
Strong acid: Acid solutions contains hydrigen ions, the higher concentration of hydrogen ions, the lower pH for example hydrochloric acid is strong acid when comapre to acetic acid it is a weakr acid. Hence srong acids are completely ionizaes but weak acids are only partly ionizaed in the solution.
pKa: It is introduced as an index to express the acidity of weak acids, where pKa is defined as fallows, we consider the Ka constant for acetic acid 1.8×10−5 (pKa) but pKa constant for is 4.8 which is a simpler expression. Furthermore the smaller pKa value has strongest acid.
An acid-base reaction reaction is represented as written below.
HA(aq)+B(aq) ⇌ BH+(aq) + A−(aq)(acid) (base) (conjugate acid) (conjugate base)
The base will take up the proton from acid and form its conjugate acid and simultaneously acid will form its conjugate base. The equilibrium will be forward or backward can be determined by using the dissociation constants (Kaand Kb) for reactants as well as of the products. The more the value of Ka for an acid, stronger will be the acid and it will undergo faster ionization. Similarly, higher the value of Kb for a base, stronger will be the base and it will undergo faster ionization.

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Chapter 16 Solutions
Bundle: Chemistry & Chemical Reactivity, Loose-Leaf Version, 9th + OWLv2, 4 terms (24 Months) Printed Access Card
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