Discussion exp5 - James Riddle jr39592 Experiment 5...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
James Riddle jr39592 Experiment 5 – Acid/Base Titration Desai, K Two of the objectives in Part 1 were to make an aqueous solution of sodium hydroxide to a certain molar concentration. Another objective was to determine the concentration of the secondary standard NaOH solution by titrating it with a solution of a primary standard KHP. Two additional objectives were to graph a Gran plot and then determine the concentration of the secondary standard, NaOH, solution. (1) The primary standard solution was potassium hydrogen phthalate (KHP) and the secondary standard solution was NaOH. The secondary standard concentration is unknown and will be determined by the highly pure, primary standard solution. The volume of the primary standard solution required to react with the primary standard yields the concentration of the secondary standard solution. It was necessary to standardize the NaOH solution as sodium hydroxide absorbs moisture from the air. (2) First, a .500 M NaOH solution was prepared and then, 2.01 g of KHP was dissolved in 80.0 mL of distilled water. Three drops of phenolphthalein were added to indicate when the end point had occurred when the solution became basic. NaOH was then slowly added from a burette into the KHP solution. This occurred until the end point was reached, which happened when the solution turned a
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 3

Discussion exp5 - James Riddle jr39592 Experiment 5...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online