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Come potrei perdere l'occasione di recensire anche il libro dell'università
Frase che non ti aspetti all'inizio di un capitolo In the 19th and early-20th centuries, benzene was used as an aftershave lotion because of its pleasant smell and as a solvent to decaffeinate coffee beans. Neither is a good idea
tipica frase (non e’ vero, ma alle 22.30 mi ha fatto sorridere) del libro
Geraniol biosynthesis begins with dissociation of dimethylallyl diphosphate to give an allylic carbocation, which reacts with isopentenyl diphosphate (FIGURE 11-15). From the viewpoint of isopentenyl diphosphate, the reaction is an electrophilic alkene addition, but from the viewpoint of dimethylallyl diphosphate, the process is an SN1 reaction
5-12 Chirality in nature and Chiral environments Although the different enantiomers of a chiral molecule have the same physical properties, they usually have different biological properties. For example, the (+) enantiomer of limonene has the odor of oranges and lemons, but the (-) enantiomer has the odor of pine trees.
Sucralose is about 600 times as sweet as sucrose, so only 1mg is equivalent to an entire teaspoon of table sugar
Ethanol is classified medically as a central nervous system (CNS) depressant. Its effects—that is, being drunk—resemble the human response to anesthetics. There is an initial excitability and increase in sociable behavior, but this results from depression of inhibition rather than from stimulation. At a blood alcohol concentration of 0.1% to 0.3%, motor coordination is affected, accompanied by loss of balance, slurred speech, and amnesia. When blood alcohol concentration rises to between 0.3% and 0.4%, nausea and loss of consciousness occur. Above 0.6%, spontaneous respiration and cardiovascular regulation are affected, ultimately leading to death. The LD50 of ethanol is 10.6 g/kg
Throughout the body, ethanol causes blood vessels to dilate, resulting in flushing of the skin and a sensation of warmth as blood moves into capillaries beneath the surface. The result is not a warming of the body, but an increased loss of heat at the surface.
The most obvious property of carboxylic acids is implied by their name: carboxylic acids are acidic (qua sono all’ultimo capitolo che studiero’, e la spensieratezza di questa frase spero continui in me anche tra qualche giorno, dopo l’esame)
ho imparato anche molte cose meno utili nella vita di tutti i giorni, ma queste sono alcune altre cose che ho pensato di voler ricordare