Bronsted-Lowry and Lewis acid-base theory, pH and pOH calculations, and buffer system concepts tested on the MCAT.
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- What is the Bronsted-Lowry definition of an acid?
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A proton (H+) donor- What is the Bronsted-Lowry definition of a base?
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A proton (H+) acceptor- What is the Lewis definition of an acid?
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An electron pair acceptor- What is the Lewis definition of a base?
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An electron pair donor- What is the formula relating pH to hydrogen ion concentration?
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pH = -log[H+]- What is the formula relating pOH to hydroxide ion concentration?
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pOH = -log[OH-]- What is the relationship between pH and pOH at 25 degrees Celsius?
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pH + pOH = 14- What is the value of Kw, the ion product of water, at 25 degrees Celsius?
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1.0 x 10^-14- What is a conjugate base?
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The species formed after an acid donates a proton- What is a conjugate acid?
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The species formed after a base accepts a proton- Name a common strong acid used in general chemistry problems.
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Hydrochloric acid (HCl)- Name a common strong base used in general chemistry problems.
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Sodium hydroxide (NaOH)- What does the equilibrium constant Ka describe?
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The strength of a weak acid, based on its degree of dissociation in water- What does the equilibrium constant Kb describe?
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The strength of a weak base, based on its degree of dissociation in water- What is the relationship between Ka and Kb for a conjugate acid-base pair?
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Ka x Kb = Kw
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