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Abstract

Protocol

Representative Results

Materials

Chemistry

Proper Lab Notebook Keeping

Published: Not Published

  1. Preparation of the Laboratory

    Here, we show the laboratory preparation for 10 students working in pairs, with some excess. Please adjust quantities as needed.

    • Put on a lab coat, splash-proof safety glasses, and nitrile gloves. You'll work in a fume hood because these acids are toxic and corrosive.
    • Ensure that the lab has containers for concentrated acid waste, aqueous acid waste, and glass waste.
    • Prepare a bottle of concentrated sulfuric acid for each student group. Measure 10 mL of 98% w/w sulfuric acid with a graduated cylinder and pour it into 20-mL bottles using a funnel. Tightly cap the bottles and label them with the solution name and concentration.
    • Prepare a bottle of nitric acid for each student group. Measure 10 mL of 70% w/w nitric acid with a clean graduated cylinder and pour it into 20-mL bottles via a clean funnel. Cap the bottles and label them with the name and concentration.
    • Set one bottle of nitric acid and one bottle of sulfuric acid at each hood.
    • Place a bottle of methyl benzoate in a common hood.
    • Put Pasteur pipettes and circular filter papers on a central bench.
    • Confirm that the balance area has enough weighing boats, spatulas, and lab wipes for the class.
    • Set out the following glassware and equipment at each student lab station (we suggest that students work in pairs):
       2    Lab stands
       3    Small 2-prong clamps
       2    100-mL beakers
       1    250-mL beaker
       1    400-mL beaker
       1    600-mL beaker
       3    10-mL graduated cylinder
       1    50-mL graduated cylinder
       1    25-mL Erlenmeyer flask
       1    250-mL filter flask
       1    20-mL test tube
       1    Glass stirring rod
       1    Large Büchner funnel
       1    Rubber filter adapter
       1    Thermometer
       2    Pipette bulbs
       1    Roll of lab tape
       1    Marker/pen
       3    Small beakers

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What is the purpose of a lab notebook?

A lab notebook provides an accurate record of the experiment performed. This is important to ensure reproducibility. A lab notebook is also a legal document that proves originality and ownership of research.

What kind of book can be used as a lab notebook?

A lab notebook must be bound with no loose pages. For lab classes, a notebook with self-duplicating pages is preferre.......

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  • Lab stand
    10
  • 2-prong clamp
    15
  • 50-mL beaker
    15
  • 100-mL beaker
    10
  • 250-mL beaker
    5
  • 400-mL beaker
    5
  • 600-mL beaker
    5
  • 10-mL graduated cylinder
    15
  • 50-mL graduated cylinder
    5
  • 25-mL Erlenmeyer flask
    5
  • 250-mL filter flask
    5
  • 20-mL test tube
    5
  • Glass stirring rod
    5
  • 10-cm Büchner funnel with rubber filter adapter
    5
  • Thermometer (acid-resistant)
    5
  • Pipette bulbs
    10
  • Lab tape
    5 rolls
  • Marker or pen
    5
  • 18.4 M Sulfuric acid (98 wt%)
    100 mL
  • 15.7 M Nitric acid (68-70 wt%)
    100 mL
  • Methyl benzoate
    20 mL
  • Ice machine or crushed ice
    5 L
  • Deionized water
    250 mL
  • Weighing boats
    5
  • 20-mL glass bottle with acid-resistant cap
    10
  • Pasteur pipettes
    -1 Dependent on lab size
  • Circular filter papers
    5
  • Laboratory wipes
    -1 Dependent on lab size
  • Top-loading balance (at least 1)
    -1 Dependent on lab size
  • Spatula
    3
  • 10-mL graduated cylinder
    2
  • Glass funnel
    2
  • Sodium bicarbonate
    500 g

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