Strength of Acids and Bases

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Presentation transcript:

Strength of Acids and Bases LecturePLUS Timberlake

Strength of Acids and Bases Strong acids are acids that completely disassociates (100%) in water. LecturePLUS Timberlake

Strength of Acids and Bases Strong acids are acids that completely disassociates (100%) in water. HCl + H2O H3O+ + Cl- (100 % ions) LecturePLUS Timberlake

Strength of Acids and Bases Strong acids are acids that completely disassociates (100%) in water. HCl + H2O H3O+ + Cl- (100 % ions) Strong bases are bases that completely disassociates (100%) in water. LecturePLUS Timberlake

Strength of Acids and Bases Strong acids are acids that completely disassociates (100%) in water. HCl + H2O H3O+ + Cl- (100 % ions) Strong bases are bases that completely disassociates (100%) in water. NaOH water Na+ (aq) + OH-(aq) (100 % ions) LecturePLUS Timberlake

A strong base or acid breaks completely in to two separate ions. Dissociation? A strong base or acid breaks completely in to two separate ions. A weak acid or base only partially breaks up in water, leaving some of the acid or base molecules together. LecturePLUS Timberlake

Strong and Weak Acids and Bases Strong acids HCl, HNO3 , H2SO4 Most other acids are weak. Strong bases NaOH, KOH, and Ca(OH)2 Most other bases are weak. LecturePLUS Timberlake