CHEM 152 Lecture Notes - Lecture 3: Aspirin, Conjugate Acid, Sodium Hydroxide

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7 Jun 2020
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Provide the acetic acid dissociation reaction for proton removal in water: Provide the kb value for the conjugate base: Parts a - d: preparation of acetic acid/acetate solutions. Provide the calculation for the concentration of the stock ch3coona solution you prepared (actual, not theoretical). Give the predominant chemical reaction that occurs when ch3coona is dissolved in water (omit spectator ions). Part e: preparation of aspirin and buffered aspirin solutions. Mass (g) of solid (for acid test) (for base test) Provide the calculation for the expected initial ph of solution #1. Provide the calculation for the expected initial ph of solution #2 (as an example of the calculation for solutions #2-4). Provide the calculation for the expected initial ph of solution #5. Parts c-e: ph measurements and determination of buffer capacity. Provide the calculation of the buffer capacity for solution #2 after the addition of hcl.

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