mistahTee's Learning Portal
 
1) Review your Excel tables from the minilab. Make sure that you understand how the cells/columns were formatted.

2) Create a new table with the following headings: Block, Density (experimental), Substance, Density (actual), Relative Error.
3) Search for densities of known substances. Compare your experimental value with the ones you find and try to identify the substance for each block. Note this and the actual density of the substance in your new table.

4) Answer the Conversion worksheets.
mistahTee
8/28/2011

In case you are still not clear on how to do #s 2 & 3, here you go:

Come up with a Results table for your data. Solve for density for each of your blocks by dividing the mass with the computed volume then put these values under Experimental. Then search online for densities of common substances and see if you can find values close to what you got. Take note of the substance and the density and put into your table. The last column, Relative Error, is computed by (actual - experimental) / actual. Multiply what you get by 100 to get the percentage, which is the relative error.

Of course, since you are using Excel or some other spreadsheet, then practice using the formulas and have the program do the math for you.

Hope that helps. ;-)

-mistahTee

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Brian Kim
8/30/2011

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stacy jeon
8/31/2011

Mr.T does everyone in the group should have their own table? and also I thought you are going to post the sample table or something :)

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