CHEM 106 L General Chemistry Lab

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CHEM 106 LGeneral Chemistry Lab
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Instructors Information

• Name Dr. M. Kadarkaraisamy,
• Sections 135, 145, 155 and 165.
• Office hours 11.00 a.m 12.00 a.m (M,T and W)
• Room Pardee 203 A
• Phone No 677-5487
• Email Mariappan.Kadarkaraisamy_at_usd.edu

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Instructors Information

• Name Dr.Hoefelmeyer
• Office hours By Appointment
• Room CL 111
• Phone No 677-6186
• Email jhoefelm_at_usd.edu

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Teaching Assistance

• Name Email
• Vivek Vivekkumar.Garripelli_at_usd.edu
• Sophia Sophia.Pao_at_usd.edu
• Jason Jason.Russell_at_usd.edu
• Kaushal

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Lab Schedule

• 9 labs.
• 2 Lab Practical (Midterm and Final).
• One make up lab.

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Attendance

• Required to be attend all the labs including the
  pre-lab lecture on your specific day.
• Attendance will be recorded.
• Dont miss more than 2 labs.
• If conflict or emergency arises please see me to
  change the lab section.
• Unauthorized lab switching is not allowed.

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Lab Report Policies

• You have to submit lab report for each lab. We
  have TEN lab reports.
• Each lab report carries 20 points.
• Submit the lab report on the same day. No take
  home.

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Lab Report Policies

• Late submission will get you less points.
• You will be loosing 3 points if you submit one
  day late and the following days also.

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Lab Report Policies

• You CANNOT submit your lab report for the
  particular lab, If you are absent.

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Cheating

• Is not allowed
• Given a ZERO for the particular lab.
• Or ultimately FAIL the course if you are caught
  cheating again.

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What are all Cheating???

• Copying the data from your neighbors without
  doing experiment or without my knowledge.
• Manipulating the results.
• Leaving the lab at half way without notification.
• There is NO excuse for cheating.

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Safety Glass

• Goggles must be worn at all times during the lab
  hours.
• You can wear contact lenses in the lab but you
  still need to wear safety goggles.
• Goggles is your expense!

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Foot Wears

• Please Dont use foot wear which exposes your
  toes like sandals and high heels.
• Chemicals and broken glass ware follow the laws
  of gravity and fall to the floor!

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Tie Long Hairs

• Hair tends to catch fire easily.
• Please tie your long hair to prevent an errant
  flame igniting a part of your body!

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Food

• Dont eat during lab hours.
• Anything ingested during lab could be
  contaminated with dangerous chemicals.

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Drinks

• Not only food, drinks like Coke, Pepsi, Tea,
  Coffee and even Water! in not allowed inside the
  lab.

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Smoking

• Chemistry lab contain lots of flammable items.
• Smoking is strictly prohibited during lab hours.

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Eye Wash

• If you get any chemical at all in your eye,
  immediately begin rinsing it in the eye wash,
  holding your eye open.
• I or Your TA or another student will come to your
  assistance and help you ascertain the seriousness
  of the exposure.

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Safety Shower

• The safety shower should be used when a chemical
  splattered over a persons body and clothes.

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Fire

• The fire extinguisher should be used when a fire
  has spread throughout the lab.
• The fire alarm should be touched when a fire is
  not able to contained by the extinguisher.

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Personal Items

• Keep your personal items such as book bags,
  purses and coats away from the lab benches.

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Handling Chemicals

• Do not remove the chemical if it is inside the
  hood.
• Do not pour the chemical directly from the
  container when you weigh.
• 1. Use Spatula if it is a solid
• 2. Use Pasteur pipettes if it is a liquid

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Handling Chemicals

• Do not spill the chemicals around the balance
  especially hygroscopic solids like NaOH,
  anhydrous CaCl2.
• Do not contaminate the chemicals and it may
  affect the results for the people who will be
  using next day or next to you.
• 1. Do not put back the excess compound into
  the container. Consider them as waste.

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Waste Disposal

• Do not drain any chemical waste through sink
  unless we tell you.
• 1. We have Separate Container for each waste
  like organic volatiles and acid waste
• 2. Broken Glass goes to Separate Container not
  to the trash
• 3. Any solid waste cannot go to trash.

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Dont mess-up

• Messing Up lab arise from
• 1. Not reading the procedure properly.
• 2. Not adding the Right amount of Reagents.
• 3. Not adding the Right reagent.
• Incase if you mess up at the beginning, restart
  the experiment.

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Todays Schedule

• Check In.
• Get your working place and lock.
• Sign the safety agreement.
• Doing Work Sheet.

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Check In Policies

• Check all the glass wares thoroughly.
• Return and get the new glass wares if it is
• 1. Broken
• 2. Not working properly
• If you have any glass wares which is not in the
  list or in excess, return to us immediately.
• Make sure you have all of your equipment in your
  drawer and lock it properly.

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Have a Great Lab

• No Play during lab hours.
• Work Defensively!
• Never do any Unauthorized Experiment or Reaction.
• Report to me all the injuries.
• Always remember that Your Safety and Lab Safety
  are the first priority.

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Common Glassware's
Volumetric Flasks
Round Bottom Flask
Used to measure a very precise and accurate
amount of a liquid.
To conduct a chemical reaction by swirling the
liquids.
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Common Glassware's
Reagent Bottle (Clear)
Reagent Bottle (Amber)
Used to store chemicals.
Used to store light sensitive chemicals.
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Common Glassware's
Round Bottom Flask
Condenser
Used to do a reaction with refluxion.
Used to do a reaction with refluxion.
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Common Glassware's
Beakers
Erlenmeyer Flask
Burette
Mainly for titration. Container for volatile
liquids and can be used to boil a liquid.
Container for non volatile liquids and
counterpart of Erlenmeyer Flask.
Used especially for accurate liquid dispensing
and measurement.
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Common Glassware's
Pipettes
Pasteur Pipettes
Used especially for accurate liquid dispensing
and measurement
Used to transfer liquids in dropwise
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Funnels
Stemless Funnels
Used for filtration and to transfer a liquid from
one to another.
Mainly used for hot filtration
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Common Glassware's
Spatula
Measuring Cylinders
Bunsen Burner
To measure the liquids. They do not measure
accurately but close to.
To produce heat.
To transfer solid chemicals in small amounts.
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Common Glassware's
Crucibles
For conducting very high temperature reaction.
Used for holding crucibles
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Common Glassware's
Tongs
Pestle and Mortor
Test tube holder
To grind or to mix solid materials.
To hold hot test tubes
Lifting tool for hot beaker, Erlenmeyer flask and
round bottom flask.
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Common Glassware's
Evaporating Dish
Buckner Funnel
Vacuum Flasks
For Quick evaporation of liquids.
Used for creating vacuum and to collect the
filtrate
Used for filtration of solid.
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Common Glassware's
Wash Bottles
Test Tubes
Watch glass
Used for mixing to chemicals or to test a sample.
Used for storing distilled water.
Used for displaying solid chemicals.
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Common Glassware's
Stands
Clamps
Used to hold burettes or condenser.