lecture19 - Chem 1P Lecture 19 Acid-base reactions Chang...

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Acid-base reactions Chem 1P Lecture 19:
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Acids and bases acids bases Na + OH Chang Section 4.3 -
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Acid-base reactions H proton donor + proton acceptor proton donor H proton acceptor + acid base Chang Section 4.3
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Acid-base reactions Acids and bases are defined through: An acid is a proton (H + ) donor A base is a proton acceptor Na + (aq) + OH - (aq) + HC 2 H 3 O 2 (aq) Aqueous sodium hydroxide mixed with acetic acid: Na + (aq) + H 2 O (l) + C 2 H 3 O 2 - (aq) base acid Neutralization reaction: amount of base reacts exactly with amount of acid in solution, neutralizing the acidity. Chang Section 4.3
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Acid-base reactions In a typical neutralization reaction, H + reacts with OH - to form water. Spectator ions are generally present too. Chang Section 4.3 H 2 O(l) + KCl(aq) HCl(aq) + KOH(aq) Molecular equation H 2 O(l) H + (aq) + OH - (aq) Net ionic equation
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Strong acids Strong acids dissociate completely in solution and can be written as their component ions when describing an aqueous reaction. Remember these strong acids: HCl, HBr, HI, HNO 3 , HClO 4, H 2 SO 4 Chang Section 4.3 HClO 4 (aq) H + (aq) + ClO 4 - (aq)
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Weak acids HC 2 H 3 O 2 (aq) Weak acids do not dissociate completely in solution and should be written in their molecular form when describing an aqueous reaction.
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This note was uploaded on 11/23/2010 for the course CHEM Chem 1P taught by Professor Ericpotma during the Winter '10 term at UC Irvine.

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lecture19 - Chem 1P Lecture 19 Acid-base reactions Chang...

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