lefttop Alfred Werner was the first Swiss citizen and also the first inorganic chemist who win the noble prize in 1913 for his coordination theory of transition metal-amine complexes. He was awarded the Noble Prize with the prize motivation state as “in recognition f his work on the linkage of atom in molecules‚ by which he has thrown fresh light on old problem and opened new field of research‚ particularly in inorganic chemistry”. Werner was born on 12 December 1866 in the French region
Premium Chemistry Ion
change‚ a precipitate‚ etc) 2) work in a short amount of time (instantly to 5 minutes) 3) only work with one functional group The following are chemical tests that we will use in this class. Some cover two related functional groups (such as the bromine test for alkenes and alkynes)‚ while other only a specific subcategory of that functional group (such as the iodoform test for methyl ketones). In some cases there can be false positives (compounds which do not have the functional group still give
Premium Alcohol Aldehyde Carboxylic acid
M12/4/CHEMI/SP2/ENG/TZ1/XX/M MARKSCHEME May 2012 CHEMISTRY Standard Level Paper 2 13 pages –2– M12/4/CHEMI/SP2/ENG/TZ1/XX/M This markscheme is confidential and for the exclusive use of examiners in this examination session. It is the property of the International Baccalaureate and must not be reproduced or distributed to any other person without the authorization of IB Cardiff. –3– M12/4/CHEMI/SP2/ENG/TZ1/XX/M General Marking Instructions Assistant Examiners (AEs) will be contacted by
Premium Covalent bond Hydrogen bond
fruits. In Asian countries‚ banana peels are cooked with their flesh or fried on their own. Cleaning commercially grown bananas before you eat the skins is essential due to all the spraying that bananas are subjected to. Other Health Uses In addition to eating banana peels‚ they can be used to rub on your skin to stop itching‚ reduce inflammation‚ remove warts‚ smooth out wrinkles‚ get rid of acne‚ control psoriasis‚ and improve skin tone and texture. These are anecdotal claims‚ of course‚ but
Premium Nutrition Kidney stone Banana
4-tert-butylcyclohexanol and 4-tert-butylcyclohexanone Intro: It is truly incredible how the smallest differences between molecules can lead them to react and behave entirely differently. These differences are perhaps most highlighted in the medical field where stereochemistry of a molecule can be the difference between having a medically active‚ effective drug and a toxic‚ potentially lethal‚ substance. For instance‚ one enantiomer of the molecule Naproxen is used to treat arthritis pain but the other enantiomer
Premium Chlorine Alcohol
Alkynes Chapter 7 Triple Bond Structure Nomenclature IUPAC: use the infix -yn- to show the presence of a carbon-carbon triple bond 4 3 2 1 2 3 4 6 7 5 1 2 3 4 6 7 5 1 3-Methyl-1-butyne 6‚6-Dimethyl-3-heptyne 1‚6-Heptadiyne Common names: prefix the substituents on the triple bond to the name “acetylene” IUPAC name: Common name: 2-Butyne D imethylacetylene 1-Buten-3-yne Vinylacetylene Physical Properties
Premium Alkene Functional groups
Introduction Chemists often find a method to determine the level of “greenness” of a chemical reaction‚ or its “atom economy”. A higher atom economy is preferable because a greater amount of the reactants will be present in the product as opposed to the byproduct.1 A Suzuki reaction is classified as an organic‚ coupling reaction that includes boronic acid and a halide that are catalyzed by a palladium complex under basic conditions. Other palladium- catalyzed coupling mechanisms include the Heck
Premium Oxygen Carbon Carbon dioxide
contains four sections‚ SECTION A to SECTION D. Instructions: Answer all questions in SECTION A - SECTION D. Make sure that the section heading is included and your answers are correctly numbered. The assignment must have a completed cover sheet. It must be placed in the drop-box on or before the deadline. st SECTION A ELECTRONIC STRUCTURE & IONIZATION ENERGY 1. 2. Write the electronic structure in s‚p‚d notation of the following: O‚ Na‚ Na+‚ Al‚ Cl- and Co
Premium Sodium hydroxide Enthalpy Hydrochloric acid
Families of elements—Nonmetals 1. Chemical properties of the halogen family are that the halogens are located in Group VIIA of the periodic table‚ and are a class of nonmetals. The halogen elements are fluorine‚ chlorine‚ bromine‚ iodine‚ astatine‚ and ununseptium. These nonmetals are reactive and have seven valence electrons. 2. Halogens are located in Group VIIA which means they have seven valance electrons. One short from an octet. 3. Similarities with almost all solutions except for Test tube
Premium Periodic table Chemical element
The Leicester School of Pharmacy Faculty of Health and Life Sciences PHAR1603 Pharmaceutical Chemistry Module Handbook 2014-15 The Leicester School of Pharmacy MPharm (Hons) The Module Team Room Email address Phone (0116 …) Dr G Hall (GH‚ Module Leader) HB2.25n ghall@dmu.ac.uk 257 7278 Dr P Bremner (PB) HB1.03 pbremner@dmu.ac.uk 257 7922 Dr J Dixon HB1.16 jdixon@dmu.ac.uk 207 8117 Prof. Katherine Huddersman (KH) HB2M1 huddzeo1@dmu
Premium Chemistry