Hydrogen Bonding-Water Drops On a Penny

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Name: Course: Instructor: Date: Hydrogen Bonding-Water Drops on A Penny Results Trial 1 Trial 2 Trial 3 Trial 4 Average Tap water 33 39 36 42 37.5 On soap-washed penny 15 20 17 22 18.5 Calculations The calculations conducted in the laboratory were supposed to get the average of the four trials Average: (Trial 1 + Trial 2 +Trial 3 + Trial 4)/ 4 Untouched penny average: (33+39+36+42)/4= 37.5 Soaped penny: (15+20+17+22)/4= 18.5 Discussion From the results above, it is clear that the penny that was not soaped required many water droplets before they spilled, as compared to the washed-up penny that requires fewer water droplets before spilling. This phenomenon is attributed to the surface tension and cohesion water properties. Cohesion can be defined as the intermolecular force that manifests between similar water molecules, whereas surface tension is the attractive force that tends to pull together the close surface molecules, hence reducing the surface area into its smallest size ADDIN CSL_CITATION { "citationItems" : , "container-title" : "Significance", "id" : "ITEM-1", "issued" : { "date-parts" : ] }, "title" : "Water : Structure and Properties", "type" : "article-journal" }, "uris" : } ], "mendeley" : { "formattedCitation" : "(Sharp)", "plainTextFormattedCitation" : "(Sharp)", "previouslyFormattedCitation" : "(Sharp)" }, "properties" : { }, "schema" : "https://github.com/citation-style-language/schema/raw/master/csl-citation.json" }(Sharp). In this case, high water surface tension enables many droplets to stick together within a small surface area (penny), hence the many droplets (37.5) required to spill. On the other hand, the soap-washed penny is

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