Simple qualitative analysis involves the identification of the constituents of an inorganic substance or a mixture of substances. The inorganic substances are split-up into two types of charged particles one of which is positively charged and the other is negatively charged. The charged particles are called ions or radicals. The positively charged ions are called cation or basic radical. The negatively charged ion is called anion or acid radical. In the qualitative analysis of an inorganic substance
Premium Ion Sulfuric acid Ammonia
SINGAPORE POLYTECHNIC SCHOOL OF CHEMICAL & LIFE SCIENCES CP 4001: ANALYTICAL & PHYSICAL CHEMISTRY Experiment 4: Gravimetric Analysis Prepared for: Mr Goh Tong Hng Submitted by: Ng Hui Shan (0900931) DBS/FT/1A/02 26th May 2009 CONTENTS 1. Synopsis 3 2. Objectives 4 3. Theory 1. Experimental Procedure 4 2. Stoichiometric Calculation 7 4. Procedure 7 5. Results & calculations 1. Amount of
Premium Gravimetric analysis Mole Concentration
ZnFe2O4 reveal that the preparation protocol allowed ZnFe2O4 to have a smaller particle size and larger specific surface area leads to increasing of oxygen mobility. 3.2. Microcalorimetry analysis 3.2.1. Water adsorption As it is known‚ the cation as a Lewis acid (host) contributes to the stabilization of an anion as a Lewis base (base) resulting
Premium Oxygen Chemistry Hydrogen
CHEMISTRY PRACTICAL NOTES - SALT ANALYSIS S.No. | EXPERIMENT | OBSERVATION | INFERENCE | 1(a) | Noted the colour of the salt | BluePale greenGreenPale pinkColourless | May be Cu2+May be Fe2+May be Ni2+‚ Cu2+May be Mn2+Absence of Cu2+‚ Fe2+‚ Ni2+‚ Cu2+‚ Mn2+ | (b) | Noted the physical state of the salt | (i)Amorphous(ii)crystalline | May be CO32-May be Cl-‚ Br-‚ SO42-‚ NO3- | 2 | Action of heat:The given salt is heated in a dry test tube. | (i)Reddish brown vapours(ii)Crackling sound(iii)Yellow
Premium Ammonia Sodium hydroxide Solubility
DISCUSSION: Qualitative analysis is used to determine the presence of cations or anions present within a sample and their impurities. Information known‚ such as chemical and physical properties‚ about cations and anions can be used to determine what steps should be used to separate the sample into one‚ specific ion. Qualitative analysis involves forming and decomposing complex ions. Qualitative tests are very sensitive‚ allowing to detect a very small amount present in sample. Due to sensitivity
Premium Solubility Oxide Chemistry
Chemistry Salt Analysis Cheatsheet Version 2.0 © 2008 Ankur Banerjee All Rights Reserved. Only important stuff for CBSE Class 12th Chemistry practical syllabus has been included‚ not everything. 2. WE + acidified K2Cr2O7 2 = sol 3 turns green 3. WE + acidified KMnO4 = pink colour of KMnO4 is discharged 4. Sulphide: Colourless gas with a smell of rotten eggs (H2S); turns lead acetate paper black 1. Sodium nitroprusside test: WE + sodium nitroprusside 4 = purple / violet colour 2. Lead acetate
Premium Ammonia Potassium Blue
Analysis: Water Analysis Jasmine Kennedy Bey Lab Partners: Mohammed Alabbad‚ Drew Blackson Chemistry 1290-020 3/26/2014 TA: Rajendr Thakuri Purpose/Abstract: Students are tested for their knowledge of basic titration technique and proper usage of specific-use probes (those used for conductivity‚ alkalinity‚ and pH‚ chloride‚ nitrate and hardness detection) on Logger Pro software. The purpose of this comprehensive lab is to determine the chemical properties
Premium PH Water Bicarbonate
In 1860‚ the first instrumental analysis was performed by Robert Bunsen and Gustav Kirchoff who used flames tests that led to the discovery of the elements rubidium (Rb) and caesium (Cs). After this‚ this method was used everywhere to find the chemical make ups of many substances. For example‚ in 2007 there was a huge problem where tainted pet food would cause many pets to become ill. Qualitative analysis was used and it was discovered that Melamine was found in the pet food which altered the results
Premium Chemistry Hydrogen Water
GRAVIMETRIC ANALYSIS Methods in GA Precipitation Method - involves isolation of an ion in solution by a precipitation reaction‚ filtering‚ washing the precipitate free of contaminants‚ conversion of the precipitate to a product of known composition‚ and finally weighing the precipitate and determining its mass by difference. From the mass and known composition of the precipitate‚ the amount of the original ion can be determined. Volatilization Method -the analyte or its decomposition products
Premium Solubility Electric charge
Carlie Haeffner Qualitative Analysis March 20‚ 2015 The purpose of this lab is to identify unknown ions in a solution by using a type of chemical reaction called precipitate reactions. The key to finding which ions are present in a solution is to form a precipitate which makes the ions “come out” in a reaction (McNeil‚ 2013-2014). Water is used in these experiments to act as a solvent. Since water is a polar molecule‚ the slightly positive and negative charges will sometimes pull apart molecules
Premium Chemistry Water Experiment