week 8 chem notes
week 8 chem notes CHEM-10055-003-201580
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This 3 page Class Notes was uploaded by Hanna Notetaker on Wednesday October 21, 2015. The Class Notes belongs to CHEM-10055-003-201580 at Kent State University taught by Bansidhar Datta (P) in Fall 2015. Since its upload, it has received 36 views. For similar materials see MOLECULES OF LIFE in Chemistry at Kent State University.
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Date Created: 10/21/15
Chem week 8 Intermolecular Forces LDF induced dipole induced dipole Dipole dipole interactions Hydrogen bonds H bonds stronger than DD interactions DD interactions stronger than LDF Dipole dipole interactions Electrostatic attraction between and dipoles Polar molecules only Example Aldehyde CH3CH H Bonds non covalent attraction between partially positive charged hydrogens with highly electronegative atom O or N usually example H20 network of H bonds 0 multiple bonds so they re touching liquid example not a H bond CH4 0 only one H no touching gas more examples 0 H25 hydrogen sulfide gas I It is non polar none of the H s are bondingtouching o NH3 I Polar can stack make network of h bonds 0 CH30H methanol I Alcohol its polar liquid 0 CCHO I Makes H bonds I CH30H H20 Makes H bonds Will dissolve in H20 I C2H5OH H20 Makes H bonds dissolvesmakes solutions Water has a high boiling point because it has a network of hydrogen bonds they must be separated which requires more energy therefore a higher boiling point Interactions made in the body 0 DNA H bonds hold bases of dna together in double helix 0 Bio macromolecules 0 Proteins Applications of Solids Gases and Liquids Gas steam or vapor high pressure 1020 ATM need pressure to get vapor to 132 degrees Celsius so it can kill bacteria and diseases 0 used to sterilize surgical tools Hyperbaric oxygen therapy chamber patient enters that is used when they are suffering from carbon monoxide poisoning It puts oxygen in the body to remove the carbon monoxide from blood PZVZ T1 T2 Combined Gas Law P1V1 in autoclave machine if pressure P increase then temp T will also increase Functions of the Lungs inspiration 0 airin 0 pressure decrease o volumeincreases o diaphragm moves down expiration 0 air out o pressureincreases 0 volume decreases o diaphragm moves up Solubility in water polar polar soluble nonpolar polar not soluble nonpolar nonpolar soluble 0 this is soluble bc LDF within npnp forces examples hydrocarbon nonpolar h20 polar not soluble o alcohols polar h20 polar soluble o aldehydes polar h20polar soluble 0 CH3OHH20 soluble CH3CH2CH20H H20 soluble CH3CH2CH2CH20H H20 low solubility o Interactions depend of length of carbon chain 0 13 carbons soluble o 4 carbons low solubility 0 5 carbons insoluble more carbons more strength
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