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Chem > CAS > Flashcards

CAS Flashcards

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1
Q

Define pH

A

It is the negative logarithm to the base ten of the hydrogen ion concentration.

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2
Q

Define pKa

A

It is the negative logarithm to the base ten of the acid dissociation constant.
The smaller the pKa, the stronger the acid.

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3
Q

Define buffer solution

A

It is a solution that is able to maintain a fairly constant pH when a small amount of acid or base is added.

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4
Q

What is a Lewis Acid? Give examples

A

It accepts a pair of electrons. E.g BF3 and AlCl3

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5
Q

What is a Lewis Base? Give examples

A

It donates a pair of electrons. E.g NH3 and OH-

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Chem (9 decks)

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