exp14_ld - Why should sodium hydroxide never be used as a...

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Name Your name Lab Day and Time TA TA's name Room Room C HEMISTRY 21L L EARNING D EVICE EXPT. Standardization of NaOH solution 14 14 For calculations, you must show all of your work and include appropriate units to receive full credit. Answers to the discussion questions should be in the form of complete sentences. 1. What do we mean when we say a solution is standardized? (1 pt) Answer 2. State the three most important characteristics of a primary standard. (HINT: summarize the list of traits in your lab manual) (3 pts) Answer 3.
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Unformatted text preview: Why should sodium hydroxide never be used as a primary standard? (2 pts) Answer 4. Distinguish between the terms end point and equivalence point. (4 pts) Answer 5. How many milliliters of 1.0 M NaOH should be used to make 500.00 mL of 0.10 M NaOH? (5 pts) Answer 6. A sodium hydroxide solution is standardized using potassium hydrogen phthalate (KHP) as a primary standard. A sample of KHP weighing 0.8482 g required 42.30 mL of NaOH for titration. Calculate the molarity of NaOH. (5 pts) Answer...
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This note was uploaded on 06/10/2010 for the course CHEM 102L taught by Professor N/a during the Spring '07 term at UNC.

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