Looks good.  One thing, you should give your answer to no. 3 to four significant figures. When you standardize an NaOH solution by titrating a carefully weighed amount of KHP (KHP is the primary standard), the goal is to obtain the NaOH concentration as accurately as possible. That's why these problems typically give four significant figures in the mass of KHP and NaOH volume when the object is standardization of the NaOH solution. Steve |
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