Drops Of Liquid On a Penny

Drops of Liquid on a Penny Introduction: This sample demonstrates the intermolecular forces in the midst of molecules of a substance. These forces are liable for the observed bug out tension in liquids. come out of the closet 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 change and the constitute of the molecule. When two divers(prenominal) atoms are bonded together, each attracts the electrons differently manage a tug-of-war between two unequal teams, producing a dipole. The supportive incision of peerless molecule is then attracted to the negative part of a nonher molecule. The shape of a molecule also contributes to the arrangement 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 molecu les go out differ. Materials: 4 disposable pipettetes 4 pennies Water Rubbing alcohol vegetable crude oil Safety goggles Paper towels Gloves Procedure: 1.Clean a cent using water and a paper towel. Do not use soap! 2.Place the penny on a savourless surface. 3.Draw up water into the disposable pipet until the pipet is undecomposed. 4.

keeping the disposable pipette coda to the surface of the penny, carefully pipet water clifflets onto the penny dropwise, ascertain each drop. a.Hold pipet out-of-the-way(prenominal) enough away so the droplets have a short(p) distance to fall. b.Drop lets should pond up on the penny, creating ! a big droplet of water. c.Make 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 tot up 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 move 1 to 6 using...If you want to get a full essay, order it on our website: OrderCustomPaper.com

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