Acid/Base Strength

 

 

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Acid/Base Strength

Acid strength determines to what extent an acid reacts with water to form ______________ ions. Strong acids and strong bases ionize ______________, so their ionization reactions are written with a normal, right-pointing arrow. The concentration of H3O+ in a strong acid solution is equal to the ______________ of the acid. The concentration of OH in a strong base solution is either equal to the initial concentration of the base, or in the case of a dibasic strong base, equal to ______________ the initial concentration of the base. An acid, whether it is strong or weak, can be either concentrated or ______________.

Strong bases: LiOH, NaOH, KOH, RbOH, CsOH, Ca(OH)2, Ba(OH)2, Sr(OH)2

Strong acids are HCl, HBr, HI, HNO3, H2SO4, HClO4

 

A strong acid exists entirely as ions in solution, whereas a ______________ exists mostly as intact molecules. Since weak acids and weak bases ionize only partially, their ionization reactions are written with ______________ arrows. The concentration of H3O+ or OH in a weak acid or weak base solution is ______________ the initial concentration of the acid or base.

 

The stronger the weak acid or weak base, the weaker its conjugate base or conjugate acid, and the weaker the weak acid or weak base, the ______________ its conjugate base or conjugate acid.

 

Practice Problems

 

 

  1. 6. Write the ionization reaction for each of these bases.

 

  1. KOH

 

  1. CH3NH2

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