1 / 12

Acid-Base Titration

Due Today: 1. Acid-Base Titration Pre-Lab 2. Gravimetric Analysis of Phosphorus Formal Lab Report Homework: 1. Acid-Base Short Report 2. Neutralizing Power of Antacids Pre-Lab. Acid-Base Titration. Objective. Prepare and standardize a sodium hydroxide (NaOH) solution

garron
Télécharger la présentation

Acid-Base Titration

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Due Today: 1. Acid-Base Titration Pre-Lab 2. Gravimetric Analysis of Phosphorus Formal Lab Report Homework: 1. Acid-Base Short Report 2. Neutralizing Power of Antacids Pre-Lab Acid-Base Titration

  2. Objective • Prepare and standardize a sodium hydroxide (NaOH) solution • Determine the molecular weight of benzoic acid(C7H6O2)

  3. Key Terms • Titration – process of reacting a solution of unknown concentration with a solution of a known concentration until the reaction is JUST complete • All reactants are limiting

  4. Key Terms • Equivalence Point – equal quantities of opposite solutions exist • Moles of acid = Moles of base • For Today’s Experiment: • Moles of KHP = moles of NaOH • Moles of NaOH = moles of Benzoic Acid

  5. Procedure Notes • Part I: Standardization • Potassium hydrogen phthalate (KHP) • KHC8H4O4 • MW: 204.22 g/mol • Prepare the buret • Rinse with distilled water • Rinse with diluted NaOH solution (student prep)

  6. Procedure Notes • Looking for a light pink color • 3 good trials • Molarities within 0.01M • Check Molarities before continuing

  7. Procedure Notes • Part II: Determining the Molar Mass of Benzoic Acid • Look for light pink color • 3 good trials

  8. Waste • Completed titrations dispose in the sink

  9. Risk assessment • Hydrochloric Acid • Danger • Inhalation Hazard • Corrosive • Sodium Hydroxide • Danger • Inhalation Hazard • Corrosive

  10. Labeling • Label for NaOH: • Names • Molarity • Lab Section

  11. calculations

More Related