1. What mass of sodium hydroxide must be weighed to make 500 mL of 0.1 M NaOH? 2. What mass of potassium hydrogen phthalate (KHP), C8H5O4K, should be weighed to make 500 mL of 0.1 M KHP? 3. What volume of a 2.5 M NaOH solution is required to prepare 300 mL of a 0.10 M solution?

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