Beers Solution Lab
By: Megan VanMaanen
Background information
What to know:
The purpose of this lab was to determine whether or not Aunt Elda died due to anesthetic complications. The normal amount of anesthesia used in a procedure is under 40%.
Before beginning you need some materials, a graduated cylinder, computer, food coloring, pipet, cuvettets, colorimeter, water, Lab Pro software.
Cuvette
This is a cuvette which you fill with the solution and place in the calorimeter to get a reading.
Colorimeter
This is a Colorimeter which is an instrument used for measuring the intensity of color.
Pipet
You can use a pipet to make get more precise measurement, while making your solution.
Graduated Cylinder
You would use a graduated cylinder to measure out your ml of solutes and solvents to make your solution.
Procedure
Step 1: Connect the Colorimeter to the computer interface, then open , Logger Pro.
Step 2: Now you're ready to calibrate the Colorimeter.
Step 3: Insert cuvette into the calorimeter & wait for the reading. (keep the data)
Step 4: Continue this process with the 10, 20, 30 etc. cuvette's until all data is collected.
How to Make a Solution
Beaker 1
To make a 0% solution you would just have water.
Beaker2
For a 20% solution you would need to add a solute.
Beaker 3
To make a 30% you would need to add even more solute to the mixture.
To get the solution that you need, you would combine the food coloring solute with the water solvent to a total of 10 ml. To get a 30% solution you put 3 ml of the solute & 7 Ml of the solvent.
The graph shows the observations made when plugging the Calorimeter into the computer. This scientifically explains what happens with the evidence shown.
Conclusion
To conclude this lab we found out that the reason Aunt Elda died was not due to a mistake made by her Anesthesiologist. We know this because when the unknown solution was put into the Calorimeter it read at about 30% which is under 40% meaning the anesthesiologist did not give her too much anesthesia.