Lab 6 Exploring Density Lab Answers

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CHM130

Lab 6

Exploring Density

Name: Nolan Strommer

A. Data Tables

Place your completed Data Tables here:

Part IIIa (3 points)
Volume of water in graduated cylinder (mL) 10 mL
Mass of rubber stopper (g) 11.35 g

Volume of water and rubber stopper (mL) 17 mL

Part IIIb (6 points)
Volume of water in graduated cylinder (mL) 8cm
Mass of iron nail (g) 3.51g
Volume of water and iron nail (mL) 8.3 mL

Part IV (20 points)
Type of
Aluminum
Foil Mass (g) Length
(cm) Width
(cm) Volume
(cm3) Thickness
(cm)
Regular .66g 15.4cm 10.3 cm .2453501cm3 .00155cm3
Heavy
Duty .97g 15.2 cm 10.4 cm .35372 cm3 .00205cm3

B. Follow Up Questions
Show all work for questions involving calculations.

Part I
1. Use the concepts/vocabulary of …show more content…
Describe three controls between the two cans of soda that helped to ensure a fair test in Part II.

The three controls in the experiments that were made are:
1- Both cans have the same volume of 12 oz.
2- Having the same temperature of water
3- Both cans are made from aluminum
6. What was the independent variable during Part II? Explain your reasoning.

The independent variable is the mass of both cans. The mass of regular diet coke can is more than the can of diet coke can because of their difference in artificial sugars and high fructose corn syrupe. Artifical sugars are used to sweeteen Diet Cokes. They have a low mass. High fructors corn syrup, on the other hand are used in regular cokes, and have a higher mass than artificial sweetners.
Part III (7 pts each)
7. Calculate the density of the rubber stopper using the density formula. (Hint: the volume of the rubber stopper can be found by subtracting the volume of the water alone by the volume of the water/rubber stopper.) You must show all your work.

D = …show more content…
Describe the physical appearance of each of your separated substances. (4 pts)

The iron fillings had a very rough shape, which was dark in color. The surface was shiny. The sesame seeds had a brown color to them.
The Salt felt very grainy and it was also brown in color.
There was only a small amount of salt present and it was almost invisible to the naked eye. The color was clear, and it had a crystal structure to it.

17. What properties did you make use of in designing your experiment? (5 pts)

The properties I made used of are the movements of the iron fillings with the magnet , the solubility of salt, and the different shapes of each substance when they were separated.

Submission

Complete the above questions in a Word document and email the lab to your instructor via Rio Mail by the due date indicated in the Course
Calendar under the Announcements Section. You can also submit your assignment by faxing it directly to your instructor. This is an option for those assignments that are not submitted electronically. Please check with your instructor for his or her specific fax
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