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Acids and bases
Arrhenius (knowledge-acids (H+ ion= bare proton, Not…
Acids and bases
Arrhenius
Arrhenius-ACIDS
- Strong acid-a substance that almost completely dissociates
in water to give hydrogen ions
- Weak acids-substance that only slightly dissociates in water to give hydrogen ions
- Acid- substance that dissociates in
water to produce H+ ions
-
Arrhenius-BASE
- Strong base-substance that almost completely
dissociates in water to give hydroxide ions
- Base-substance that dissociates
in water to produce OH- ions
- Weak base-substance that only
slightly dissociates in water to give hydroxide ions
-
Arrhenius theory
- Sulfuric acid in a car battery
- Ethanoic acid(acetic acid) in vinegar
- Carbonic acid in fizzy drinks
Arrhenius examples
- A solution of hydrogen chloride gas is commonly
called hydrochloric acid
- Dissociate to give one h+ ion in an aqueous solution
monobasic or monoprotic
- Sulfuric acid-dissociate to give two h+ ions
dibasic or diprotic
- Phosphoric acid-dissociates to give 3 h+ ions
tribasic or triprotic
-
Weak acids
- ethanoic acid(acetic acid)
- methanoic acid(formic acid)
1.Strong base
2.Weak base
-
-
- OH- ion called hydroxide ion
- A base that dissolves in water- alkali
Limitations-Arrhenius
-
2.Arrhenius restricted definitions to aqueous solutions-
acids and bases can exist outside of aqueous solutions
- Water is not always needed
for acid and base reactions
knowledge-acids
-
- Not possible for a bare proton
to exist independently
- H+ ions react with water molecules
to form H3O+ ion- hydronium ion
present in every acidic solution
- Dative or coordinate means givng
- Hydrogen bonds dont exist in a solution
Base
- Many basic solutions have a soapy feel cause they convert some of the oil in your skin to soap- makes skin slippery