Chemistry

Problem

Three

0.10\,\text{M}

aqueous solutions of weak bases are each titrated with

\text{HCl}

until exactly one mole of acid has been added per mole of base. The bases have the following

K_b

values: • Base X:

1.0\times10^{-3}

• Base Y:

1.0\times10^{-5}

• Base Z:

1.0\times10^{-7}

After the respective equivalence points are reached, which solution will have the lowest pH? a) Base X b) Base Z c) All three solutions will have the same pH d) Base Y

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