用0.10 mol·L -1 NaOH溶液滴定0.10 mol·L -1 HA( K a =5.0×10 -5 ), 若终点的pH为9.00, 则终点误差为( )。
A.
0.018%
B.
0.20%
C.
0.15%
D.
0.023%
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