Why must you calibrate your glassware

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Reference no: EM133227703

Elementary Analytical Chemistry Assignment -

Theory - Describe the rationale behind this procedure. In your discussion, you should consider the following: You may find that reading text sections 4.1 and 4.2 will help.

Why must you calibrate your glassware?

What is the difference between random and systematic error, and how does it apply to your data.

What do we mean by bias, and how is it different from difference?

Why do we calculate a mean, rather than taking one reading? Which errors can be reduced by taking the mean?

What is a standard deviation? What does it tell us about our data?

What does the %RSD tell us about our data?

Why do we create a bias plot for the buret, but calculate %RSD for the volumetric glassware?

Include the words tare, buoyancy, and parallax as needed.

Sample Calculations to show -

-Nominal volume of sample delivered to the weighing vessel from the buret

-Nominal mass of sample delivered to the weighing vessel

-True mass

-True Volume

-Bias

-Mean

-Sample Standard deviation (s)

-%Relative Standa rd Deviation (%RSD)

-% Error

Using excel, calculate the true mass, true volume, bias, mean, standard deviation, %RSD, and % error in the appropriate locations in your spreadsheet. You will upload your completed spreadsheet into Canvas with your Report for review, but be certain to create a summary chart in your lab report. Your lab report must stand on its own, and not reference the spreadsheet.

Results - Using the "Snipping Tool" in Windows or Apple screen shot that is cropped, cut and paste from your Excel bias plots to create figures in your report for your bias plot and the class bias plot. Caption each figure.

Create a Summary Table in Word for your volumetric pipettes, including pertinent statistical analysis.

Create a summary table in for the Class Data values for each volumetric Device.

Lab Report: You will submit your completed lab report in pdf to Canvas.

Attachment:- Elementary Analytical Chemistry Assignment Files.rar

Reference no: EM133227703

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