Equilibrium Constant quiz Flashcards
Equilibrium Constant quiz
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What does the pKa value indicate in organic chemistry?
The pKa value indicates a molecule's tendency to donate protons, with lower values representing stronger acids. How does the dissociation constant relate to acid strength?
A higher dissociation constant indicates a stronger acid, as it fully dissociates in solution. What is the relationship between pKa and the equilibrium constant?
The pKa is the negative log of the equilibrium constant, reflecting the tendency of a molecule to donate protons. Why is pKa used instead of pH in organic chemistry?
pKa is used to measure the tendency of a molecule to donate protons, which is more relevant than the solution's acidity or basicity. What pKa value is considered neutral, similar to water?
A pKa value of 16 is considered neutral, similar to water. What does a pKa value of -10 indicate?
A pKa value of -10 indicates a very strong acid. What does a pKa value of 50 indicate?
A pKa value of 50 indicates a very weak acid, poor at dissociating. How does the pKa scale compare to the pH scale?
Both scales measure acidity, but pKa focuses on a molecule's proton donation tendency, with lower values indicating stronger acids. What is the significance of a low pKa value?
A low pKa value signifies a strong acid with a high tendency to donate protons. What does a high pKa value suggest about a molecule's acidity?
A high pKa value suggests that the molecule is a weak acid with a low tendency to donate protons.
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