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BISC110/S13: Series 1 Lab 1 Boot Camp: Difference between revisions
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BISC110/S13: Series 1 Lab 1 Boot Camp (view source)
Revision as of 11:15, 29 January 2013
, 29 January 2013→B. Solution Preparation
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#Calculate the correct weight of the material to yield 50mL of the proper molarity for the cupric or cobalt chloride solutions and record all calculations in your lab notebook. What would be the millimolar concentration of your solution? Have your lab instructor check your calculations before you weigh the material. | #Calculate the correct weight of the material to yield 50mL of the proper molarity for the cupric or cobalt chloride solutions and record all calculations in your lab notebook. What would be the millimolar concentration of your solution? Have your lab instructor check your calculations before you weigh the material. | ||
#Put on gloves before handling chemicals in the solid state. Nitrile gloves are available on the bench at the front of the laboratory. Please advise your lab instructor if you have a nitrile allergy. | #Put on gloves before handling chemicals in the solid state. Nitrile gloves are available on the bench at the front of the laboratory. Please advise your lab instructor if you have a nitrile allergy. | ||
#Using one of the top loading balances, weigh the correct amount of solid material and transfer it to a | #Using one of the top loading balances, weigh the correct amount of solid material and transfer it to a 150mL beaker. | ||
#Using a graduated cylinder, add 35mL of deionized water to the beaker. Add a magnetic stir bar and mix on a magnetic mixer until all the solid material has dissolved. Remove the magnetic stir bar. | #Using a graduated cylinder, add 35mL of deionized water to the beaker. Add a magnetic stir bar and mix on a magnetic mixer until all the solid material has dissolved. Remove the magnetic stir bar. | ||
#Transfer the solution into an empty | #Transfer the solution into an empty 50mL graduated cylinder and bring the volume to exactly 50mL with deionized water. | ||
#Transfer the solution to an empty storage bottle. Label the bottle with the name and concentration of the solution, your initials, your lab section and date.<br> | #Transfer the solution to an empty storage bottle. Label the bottle with the name and concentration of the solution, your initials, your lab section and date.<br> | ||
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