A NaOH solution is to be standarized by ...

A NaOH solution is to be standarized by titrating its against a known mass of potassium hydrogen phthalate. Which procedure will give a molarity of NaOH that is too low ?

Deliberately weighing one half the recommended amount of potassium hydrogen phtalate.

Dissoving the potassium hydrogen phtalate in more water than is recommeded.

Neglecting to fill the tip of the buret with NaOH solution before titrating.

Lossing some of the potassium hydrogen phthalate solution from the flask before

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