IGSCE Chemistry Notes Oxides Oxides are used to determine whether an element is a metal or a non-metal. Most non-metals are classed as acidic oxides. While most metals are classed as basicoxides. Acidic Oxides * Reacts with water to form acids * Neutralises alkaline solution to form salt + water Basic Oxides * Neutralises acidic solutions to form salt + water Amphoeteric Oxides * These are non-metals which display both acidic and basic properties Alkaline Oxides * Reacts
Premium Oxygen Carbon dioxide Hydrogen
Testing for Cation and Anions OBJECTIVE: • Determine the presence of a cation or anion by a chemical reaction • Determine the cation and anion in an unknown solution All salt solutions have both positive (Cations) and negative (Anions) ions dissolved in it. In this experiment you will observe chemical reactions to determine the presence of specific anions and cations. Compare your observations with the reactions of the known solutions and the unknown solution to determine the ions present
Premium Ion Ammonia Chemistry
Chemistry 3373F Lab Manual 2008 Modified 11/07 Table of Contents Chem 3373 Laboratory Schedule for Fall 2008.............................................................................2 The Benzoin Condensation of Benzaldehyde ..............................................................................3 Synthesis of Dilantin and Related Compounds (two weeks).........................................................6 Synthesis of an Alkaloid: Pseudopelletierine (two weeks) .............
Premium Hydrochloric acid Sulfuric acid Acetic acid
Experiment #9 – Identification of Aldehydes and Ketones Introduction Aldehydes and ketones share the carbonyl functional group which features carbon doubly bonded to oxygen. In the case of ketones there are two carbon atoms bonded to the carbonyl carbon and no hydrogens. In the case of aldehydes there is at least one hydrogen bonded to the carbonyl carbon; the other attachment may be to a carbon or a hydrogen. In all cases the carbon(s) that are attached to the carbonyl group may be aliphatic (not
Premium Aldehyde Carbonyl Alcohol
PAHANG TRIAL 2009 EXAMINATION CHEMISTRY PAPER 2 MARKING SCHEMES SECTION A - Structural Questions: Question 1. (a) (i) The presence of isotopes 1M (ii) Let the abundance of 63X be a %. The % abundance of 65X. = ( 100 – a ) 1M Relative atomic mass = ( 62.93 x a) + ( 64.93 x ( 100 -a) ) 1M
Free Atom Electron Covalent bond
Natalia Nelson 6661318 Environmental Studies Section: Friday @ 2:00 with Jason Linn Fracking: The Invention of the Century or Destructive New Technology? Introduction: Possible quote – someone who supports the processs. Possible story: some analogy of something that was a good‚ necessary idea but just put off the inevitable and had a negative affect than fix it. Need for energy‚ how new ideas are necessary But is fracking really the best option? Public eye‚ people here about fracking
Premium United States Environmental Protection Agency Safe Drinking Water Act Water
Chem 31.1 Post Lab 3 CARBONYL COMPOUNDS AND CARBOHYDRATES HYDROLYSIS OF POLYSACCHARIDES - - Susceptible to both nucleophiles and electrophiles Presence of C=O TEST FOR ALDEHYDES AND KETONES - - Reaction with 2‚4-DNP (Dinitrophenylhydrazine) Positive: Formation of yellow precipitate IODOFORM TEST - Carbonyl compounds: Methyl ketones will give a positive result Postive: Yellow precipitate (CHI3) MOLISCH’S TEST for carbohydrates - TOLLEN’S TEST – for aldehydes
Premium Carboxylic acid Acid Ammonia
proteins and hormones. Though urine varies in appearance‚ normal urine is a transparent solution ranging from colorless to amber but is usually a pale yellow. Normal human urine is odorless‚ but if left in the open for some time it changes to a distinct ammonia smell. Some of the main components of urine are ions like sodium‚
Premium Fertilizer Urine Ammonia
The effect of molecular weight on the diffusion rates of Potassium permanganate (KMnO4)‚ Potassium dichromate(K2Cr2O7) and Methylene Blue^1 _________________ Group 3 Sec. X-1L February 6‚ 2012 ____________________ ABSTRACT The effect of molecular weight on the diffusion of substances were tested through the use of agar-water gel with three wells placed in a petri dish. Drops of three different substances namely: Potassium
Free Diffusion Molecular diffusion Ammonia
PRODUCTS 1 Urea 2 Di-Ammonium Phosphate (DAP). 3 Calcium Ammonium Nitrate (CAN). 4 Ammonium Sulphates (AS) 5 Single Super Phosphate (SSP) 6 Nitro phosphate (NP) 7 Sulphate of Potash 8 Zinc Sulphate 1. Urea: More than 90% of the world’s production is destined for use as a nitrogen-release fertilizer. Urea has the highest nitrogen content of all solid nitrogenous fertilizers in common use (46.7%). 2. Di-Ammonium Phosphate (DAP): It contains 46% P2O5 and 18% N.
Premium Nitrogen Ammonia Fertilizer