Surface Tension Experiments. measuring surface tension using a tensiometer for 1-butanol to examine the dependence of surface tension on the molecules chain length First, the lower surface tension means that the paper can’t sit atop the water’s surface, allowing more of the water to come in contact with more of the paper. Surface Tension of Water Lab Testable Question: Results Averages 0.0304 mL per drop Avg Drop Volume w/ Pure Water Avg Drop Volume w/ 25.00 mL Bleach By Aaron, Isabella, Cameron, and Leta What happens to surface tension of water when we add chlorine bleach? Surfactants are amphiphilic compounds that lower the surface tension (or interfacial tension) between two liquids or between a liquid and a solid. The force f 1 in Eq. Some things can affect the surface tension, like pollutants in the water. Surface Tension My problem was to find out how to test or measure surface tension.I think the reason of some of the force in surface tension is cohesion and gravity.Surface Tension is the condition existing at the free surface of a liquid, resembling the properties of an elastic skin under tension.The tension is the result of intermolecular forces exerting an … Due to their amphiphilic nature, these surface-active molecules facilitate the production of foam, emulsions and dispersions. Cohesion is the attraction of like molecules to one another. There are two properties at work in this experiment: cohesion and surface tension. DATE OF EXPEREMEN'| ':23‘ /10/2013 MANE OF STUDENT: Kamal Rahman Ahmad Group: C Mr. A|i SUPEVISED BY: 2. introduction The surface tension is an expression of the resistance which … It is a result of the COHESION of water molecules. Other examples of surface tension include water striders, dew drops, raindrops on a View Surface tension lab report.docx from CHEMISTRY 325 at Middlesex County College. 5- Record results the results table (Part two: surfactant) 6- Placed the dish in a flat steady surface. This lab focuses on two big ideas – Scientific Processes and Surface Tension. The surface tension can also be determined by the rise of liquid in glass capillary if attractive forces exist between glass material and liquid (e.g. Surface tension refers to water's ability to "stick to itself". water). Surface Tension Report 1. (Part one: water surface tension) 1- Place the penny in a flat area 2- Fill a dropper with water 3- One by one add the drops of water to the top of the penny 4- Measure how many drops fit until the drops break the surface tension of the water. Surface tension is a special term we use to describe the cohesion between water molecules. 1. It is the reason that water collects in drops, but it’s also why plant stems can “drink water,” and cells can receive water through the smallest blood vessels. Champagne Period 8 5/6/19 Lab Report Purpose: to observe an unusual surface property of water that You can test multiple surface tension experiments using just a few household items. This is the basis of “capillary” In this case, the like molecules are the H20 molecules in the water drops. Surface tension lab report - Free download as PDF File (.pdf), Text File (.txt) or read online for free. Abdul Momoh Ms. Take one 250mL (2) where: d – the liquid density (g/cm 3) (actually the difference between the liquid and the gas densities), g – the acceleration of gravity. KOYA UNIVERSITY FACULTY OF ENGINEERI SCHOOL OF PETROLEUM AND CHEMICAL FLUID MECHANIC LAB NAME OF EXPEREMENT: Tension Sur. Second, the weakened hydrogen bonds mean that the water is more likely to soak into the porous paper, making the paper much more dense and causing it to sink. Surface tension is the force that holds atoms or molecules of the same substance together when they are in contact with another substance. (1) is equilibrated by the mass of the liquid raised in the capillary to the height h, that is the gravity force f 2.In the case of non-wetting liquid – it is lowered to a distance –h. Surface tension is one of the most important properties of water. Here, the water molecules in the droplet are held together by surface tension while they are in contact with the desk. ... Lecithin Organogenic Lab Report 890 Words | 4 Pages. Download as PDF File (.txt ) or read online for Free the attraction of like molecules the! A flat steady surface cohesion and surface tension lab Report - Free download as PDF File (.txt ) read... 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