Effects of Surface Tension On A Penny

Effects of Surface Tension On A Penny

Does the amount of soap mixed with water affect how much water can cling to the top of a penny?

If the soap concentration does affect the amount of water that can cling to the surface of a penny, then the lower the soap concentration, the higher the number of drops that can surface the penny.

Materials

? two 250ml beakers

? one eyedropper

? one test tube holder

? one penny


Samples of

? 100% tap water

? 75% tap water/25% liquid soap dipping solution

? 50% tap water/50% liquid soap dipping solution


Procedure:

1. Collect your lab materials and take them to your lab bench.

2. Turn one beaker upside down ...

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of 75% tap water/25% liquid soap using the test tube holder. Following this instruction, return to step 2 and repeat steps 2-5.

7. Rinse and dry the penny completly, and dip the penny in the solution of 50% tap water/50% liquid soap using the test tube holder. Following this instruction, return to step 2 and repeat steps 2-5.

8. Record the results of all the trials on the Data Table, calculate the average number of drops for each solution, and create a bar graph of your results.



Data Table:

Dipping Solution - Trial 1 - Trial 2 - Trial 3 - Trial 4 - Average

100% water 0% soap- 30 76 29 34 42.25

75% water 25% soap- 10 13 12 14 12. 25

50% water 50% soap- 10 11 12 8 10.25


Observations

Throughout the expierment, I observed multiple different things. While conducting the first few trials using the 100% ...

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Effects of Surface Tension On A Penny. (2014, November 25). Retrieved June 19, 2018, from http://www.essayworld.com/essays/Effects-of-Surface-Tension-On-Penny/104518
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"Effects of Surface Tension On A Penny." Essayworld.com. November 25, 2014. Accessed June 19, 2018. http://www.essayworld.com/essays/Effects-of-Surface-Tension-On-Penny/104518.
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PAPER DETAILS
Added: 11/25/2014 06:42:02 PM
Submitted By: samanthaessays
Category: Science & Nature
Type: Premium Paper
Words: 526
Pages: 2

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