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Part 1: Determining the Concentration of an Unknown Acid Solution Discussion In the previous week’s lab period, you prepared and standardized a sodium hydroxide solution, using KHP as the primary standard. In this lab period, you will use a standardized sodium hydroxide solution as a secondary standard in order to determine the concentration of an acid solution. The molarity of the standardized NaOH solution is given in the data page. Assume the unknown acid is monoprotic. Safety Hazard Caustic sodium hydroxide may cause severe tissue damage. Contact with the eyes will result in blindness. Wear your goggles! Contact with skin will saponify skin oils and cell membranes, severely drying and/or destroying the skin. Avoid contact. Phenolphthalein, a carcinogenic substance, caused cancers of the kidney, liver, adrenal gland, ovary, and
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