Thin Lenses Lab Report Essay Example

Thin Lenses Lab Report Essay Example Thin Lenses Lab Report Paper Thin Lenses Lab Report Paper As reaction is reversible, removal of water or the addition of an excess of one of the reactants (cheaper one) drives the reaction towards formation of ester. Excess carboxylic acid is used) Adding excess arbitrarily acid is preferred as it is easier to separate carboxylic acid and ester compared to removing water t] solvent used is (Chocoholic), as water is insoluble in the solvent, so reverse reaction will not take place D using concentrated acid as catalyst rather than aqueous drives equilibrium to the right Reactivity of alcohol: COUCH > primary > secondary > tertiary > phenol In the reaction, no anion can exist, as it is in acidic condition, or acid will react Why dilute the reaction mixture after refluxing? When it is diluted, the ester will be depredation anion and thus enervative as electrophoresis Why sodium bicarbonate is added? To remove excess carboxylic acid and sulfuric acid in mixture Why add brine? Brine is added to remove any water in the mixture as the by product Anhydrous sodium sulfate is added to dry the ester For IR spectrum: C] 1740. CACM-1 (C=O strong absorption shows there is an ester) 0 3500-3100 cam-1 (lack of broad O-H peak shows substance is not alcohol)

French Words for Writers

French Words for Writers French Words for Writers French Words for Writers By Maeve Maddox Here are some French words and expressions of special use to writers. auteur theory This term has come into use from the writings of French film critics. The auteur is the director and the film is interpreted in relation to that directors personality and personal view of the world. Such criticism usually compares the film being analyzed to other films by the same director. belles-lettres (beautiful literature) Since in current usage the word literature is used for everything from Moby Dick to publicity flyers, the term belles-lettres is useful when one wishes to differentiate between lasting literary works, as opposed to writing of a more ephemeral or prosaic nature. critique As a noun, a critique is a critical examination of a work according to some set of standards, with an intention of defining it and assessing its worth. A critique goes into more depth than a review. In English critique can also be used as verb: My assignment is to critique Cargoes by John Masefield. dà ©nouement (unknotting/untying) The dà ©nouement is that part of a mystery story in which the solution is presented and the missing details provided. It follows the climax and heralds the end. film noir (black film) This term was coined by French film critic Nino Frank to refer to a type of crime film of the 1940s. Prime examples: The Maltese Falcon, Double Indemnity, and Touch of Evil. A few non-crime films are also classed as film noir, for example: Blood on the Moon (western), and The Lost Weekend (a film about alcoholism). What they have in common is that most were filmed in black and white with the camera held at odd angles. They make use of voice-over narration. Lighting is dark and forbidding, and the nature of the story is depressing. More recently, the television series Twin Peaks has been called soap noir. nom de plume (pen name) Although nom de plume is an expression made up of French words, it was probably coined by English speakers on the model of the French expression nom de guerre (war name) which already has the meaning fictitious name. Everyone knows that Mark Twain was the nom de plume or nom de guerre of Samuel Clemens. pastiche The French got this word from an Italian word meaning pie. A pastiche is a parody or literary imitation, usually written with the intention to ridicule, but it sometimes results from too great an admiration for another author. Parodies are usually of short-lived interest or amusement, but sometimes a pastiche turns out to have lasting entertainment value. Alexander Popes long poem The Rape of the Lock is a pastiche of the heroic epic and is still funny to anyone who has read the Iliad. Likewise the film Galaxy Quest is hilarious to anyone brought up on the original StarTrek television series. prà ©cis (from French word for precise) A prà ©cis is an abstract of the essential facts of a work, presented in the same order they appear in the original. This is different from a summary which may present the essential information in a different order. roman clef (novel requiring a key) The word roman in this expression is French for novel. In this kind of novel the fictional characters and events represent real persons and events. Primary Colors (about Bill Clinton) and Postcards from the Edge (about people in Carrie Fishers life) are romans clef. RSVP (please reply) Everybody knows that RSVP on an invitation is a request for the persons invited to tell the host if they will in fact attend the function. Ive seen invitations that say Please RSVP. The abbreviation RSVP stands for Rà ©pondez sil vous plaà ®t. The sil vous plaà ®t is the equivalent of please. RSVP is all thats needed. Want to improve your English in five minutes a day? Get a subscription and start receiving our writing tips and exercises daily! Keep learning! Browse the General category, check our popular posts, or choose a related post below:20 Great Similes from Literature to Inspire YouConnotations of 35 Words for Funny PeoplePassed vs Past