Drops Of Liquid On a Penny

Drops of Liquid on a Penny Introduction: This examine demonstrates the intermolecular forces in the midst of molecules of a substance. These forces are amenable for the observed bug out tension in liquids. fold tension is the phenomenon where strong forces betwixt molecules cause the surface of a liquid to contract. Intermolecular forces outcome from the types of atoms bonded to get toher in the blend and the constitute of the molecule. When two divers(prenominal) atoms are bonded together, each attracts the electrons differently desire a tug-of-war between two unequal teams, producing a dipole. The positive degree exposit of peerless molecule is then attracted to the negative part of a nonher molecule. The shape of a molecule also contributes to the physical composition of a dipole. Molecules containing triplet or more atoms may be linear in shape or stage set. Depending on how symmetrical or how bent the molecule is, the formation of a dipole in molecules go out differ. Materials: 4 spendable pipettetes 4 pennies Water Rubbing alcohol vegetable petroleum Safety goggles Paper towels Gloves Procedure: 1.Clean a penny using water and a paper towel. Do not use soap! 2.Place the penny on a tight surface. 3.Draw up water into the disposable pipet until the pipet is fully. 4.

place the disposable pipette coda to the surface of the penny, carefully pipet water disregardlets onto the penny dropwise, ascertain each drop. a.Hold pipet uttermost enough away so the droplets have a soon distance to fall. b.Droplets should pond up on the penny, creating a plentiful droplet of water. c.M! ake certain(a) you keep an accurate press of drops. 5.Record your observations of the appearance of the droplet on the penny. 6.Stop pipetting when the droplet on the penny breaks and overflows. a.The count for each running play is the spell of drops the penny could hold, so do not count the drop placed on the penny which caused the overflow. 7.Repeat travel 1 to 6 using water until you have 3 water trials. 8.Repeats go 1 to 6 using...If you want to get a full essay, order it on our website: OrderCustomPaper.com

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