4. Compare the spectrum of the unknown gas collected at the bulb company with the data in your table. Which gas is leaking into the lab? Make a claim and support your claim with evidence. The leaking gas is: Im to lazy to put the table in so here is the link:

file:///C:/Users/The%20Family/Downloads/SpectrometerToolLab_Worksheet_A_ext-1%20(1).pdf

22mm²  

Explanation:

There are 6 sides of a "cell": 3 different types of sides with different dimensions that are multiplied twice because there is a front and back side with the same dimensions.

Front and back side = 2 × 5mm × 1mm

                                 = 10mm²

Left and right side = 2 × 1mm × 1mm

                              = 2mm²

Up and down side = 2 × 5mm × 1mm

                               = 10mm²

Total surface area = 10mm² + 2mm² + 10mm²

                              = 22mm²