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Acids
Acids
• Acids are compounds that give off hydrogen ions, (H+) when dissolved in water. When a compound has hydrogen as its cation the substance is generally an acid – Examples: HCl, H2SO4, H3PO3
• The rules for naming acids are based on the anion portion of the acid formula.
Rules for Naming Acids
• The names of acids are based on the ending of the anion name.– Examples: HCl, H2SO4, H3PO3
Rules for Naming Acids
• The names of acids are based on the ending of the anion name.– Examples: HCl, H2SO4, H3PO3
• Cl‾ = chloride
Rules for Naming Acids
• The names of acids are based on the ending of the anion name.– Examples: HCl, H2SO4, H3PO3
• Cl‾ = chloride
• SO42‾ = sulfate
Rules for Naming Acids
• The names of acids are based on the ending of the anion name.– Examples: HCl, H2SO4, H3PO3
• Cl‾ = chloride
• SO42‾ = sulfate
• PO33‾ = phophite
Rules for Naming Acids
Anion ending Example Acid name Example
-ide Cl- (chloride) hydro-(stem)-ic acid hydrochloric acid
-ate SO42- (sulfate) (stem)-ic acid sulfuric acid
-ite PO33- (phosphite) (stem)-ous acid phosphorous acid
Name the acids
• HNO2
• HCN
• H3PO4
nitrous acid
hydrocyanic acid
phosphoric acid
Write formulas for the following acids
• chromic acid
• hydroiodic acid
• chlorous acid
H2CrO4
HI
HClO2
Homework
• Do the 4 “HOMEWORK” (Not example) problems on the Binary Molecular Compounds and Acids note page.– Do these problems on your own paper.– Homework will be collected tomorrow.
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