El chino mas chino

Páginas: 2 (308 palabras) Publicado: 2 de mayo de 2011
los negros tiemblan al escuchar mi nombre!!!! soy el salvador de todos los amarillos en en san sivarvisible in normal light.
The physical properties of ethanol stem primarily from the presenceof its hydroxyl group and the shortness of its carbon chain. Ethanol’s hydroxyl group is able to participate in hydrogen bonding, rendering it more viscous and less volatile than less polar organiccompounds of similar molecular weight.
Ethanol is a versatile solvent, miscible with water and with many organic solvents, including acetic acid, acetone, benzene, carbon tetrachloride,chloroform, diethyl ether, ethylene glycol, glycerol, nitromethane, pyridine, and toluene.[12][13] It is also miscible with light aliphatic hydrocarbons, such as pentane and hexane, and with aliphaticchlorides such as trichloroethane and tetrachloroethylene.[13]
Ethanol’s miscibility with water contrasts with that of longer-chain alcohols (five or more carbon atoms), whose water miscibilitydecreases sharply as the number of carbons increases.[14] The miscibility of ethanol with alkanes is limited to alkanes up to undecane, mixtures with dodecane and higher alkanes show a miscibility gapbelow a certain temperature (about 13 °C for dodecane[15]). The miscibility gap tends to get wider with higher alkanes and the temperature for complete miscibility increases.
Ethanol-watermixtures have less volume than the sum of their individual components at the given fractions. Mixing equal volumes of ethanol and water results in only 1.92 volumes of mixture.[12][16] Mixing ethanoland water is exothermic. At 298 K, up to 777 J/mol[17] are set free.
Mixtures of ethanol and water form an azeotrope at about 89 mole-% ethanol and 11 mole-% water[18] or a mixture of about 96volume percent ethanol and 4% water at normal pressure and T = 351 K. This azeotropic composition is strongly temperature- and pressure-dependent and vanishes at temperatures below 303 K/[19]
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