Chapter 2 Notes

Chapter 2 Notes - Chapter 2 Acids and Bases 2.1 Acid-Base...

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Chapter 2 – Acids and Bases 2.1 – Acid-Base Reactions - Brønsted-Lowry acid: a species that donates a proton - Brønsted-Lowry base: a species that accepts a proton - Conjugate base: when a compound loses a proton, the resulting species - Conjugate acid: when a compound accepts a proton, the resulting species - Aciditiy: a measure of the tendency of a compound to give up a proton - Basicity: a measure of a compound’s affinity for a proton - HCl is the conjugate acid of Cl - - H 2 O is the conjugate base of H 3 O + - The stronger the acid, the weaker its conjugate base 2.2 – Organic Acids and Bases; pK a and pH - The larger the acid dissociation constant, the stronger the acid - The smaller the pK a the stronger the acid - The most common organic acids are carboxylic acids; can act as acids or bases - Amines can also act as an acid or base, however they generally act as bases 2.3 – The Effect of Structure on pK a - The weaker the base, the stronger is its conjugate acid - Stable bases are weak bases
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Chapter 2 Notes - Chapter 2 Acids and Bases 2.1 Acid-Base...

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