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Consider a weak base that has a pKb of 4.2. • What is the pKa of...

Consider a weak base that has a pKb of 4.2.

• What is the pKa of this solution?

• What is the pH of a 0.2 M solution of this base?

• If you were to mix 50 mL of the 0.2 M base with 50 mL of a 0.1 M solution of its conjugate acid, what would the pH of this buffer be, and what is its effective buffering range?

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