Testing for Ions Analysis Chemical Changes of Test Solutions Test Solution Silver Nitrate Barium Chloride Potassium Thiocyanate Sodium Sulfate - Stayed white in color - Turned cloudy in color - Precipitation formed in solution - Stayed white in color Potassium Chloride - Turned cloudy in color - Precipitation formed in solution - Stayed white in color - Stayed white in color Iron (III) Nitrate - Stayed orange in color - Stayed orange in color - Changed color from orange
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Write up for Qualitative Analysis 1. Introduction- This experiment is for qualitative analysis so we are trying to find out what is in a substance. In this case we are using the flame test to try and discover what is in 4 unknown sample solutions that we have been given this is done by cross referencing the colour of the flame with 6 known solutions we test beforehand. Aim- In this experiment we are attempting to distinguish what substances are in the 4 unknown solutions by cross referencing
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VCE Chemistry Week 1 - Chemical Analysis (1) Horizen Education February 8‚ 2013 1 1.1 Review: Gravimetric and Volumetric Analysis Gravimetric Analysis Solubilities Always soluble: Usually soluble: Exceptions: Na+ ‚ K+ ‚ NO3− ‚ CH3 COO− ‚ NH+ 4 Cl− ‚ I− ‚ Br− i. Sodium carbonate and Silver nitrate ii. Iron (II) sulfate and Lead (II) nitrate iii. Sodium nitrate and Nickel sulfate iv. Potassium hydroxide and Copper (II) nitrate v. Sodium sul de and Cadmium sulfate Ho
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LAB 3: QUALITATIVE ANALYSIS Part 2- ANIONS Sameera Feroz Butt Lab Partner: Ram Soni Thursday January 30‚ 2014 Leilani Morales CHEM1131-02 OBJECTIVE The objective of this experiment was to use qualitative analysis to determine the chemical characteristics of four known anions by systemic confirmatory testing. The chemical characteristics observed were to be used to identify an unknown sample. Sulphuric acid was to be added to a carbonate solution and an effervescent reaction would
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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
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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
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Analysis of Alum AlK(SO4 )2 . 12H2O AP Chemistry Lab # 5 INTRODUCTION Every compound has a unique set of chemical and physical properties. To identify a compound with certainty‚ experiments have to be conducted in order to verify these properties. Such kind of analysis is usually performed when a compound is synthesized‚ and whether the compound is indeed the compound desired needs to be ascertained. The main purpose of the experiment is to analyze alum‚ AlK( SO4
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SSN COLLEGE OF ENGINEERING DEPARTMENT OF CHEMICAL ENGINEERING V Semester – CH 2307 TECHNICAL ANALYSIS LAB -2010 INDEX SHEET CYCLE ONE Date of Condn. Date of Subn. Sign 1 Estimation of COD of the given sample of water. 2 Estimation of Manganese in the given pyrolusite ore. 3 Estimation of Magnesium by EDTA method. 4 Estimation of purity of drug using pH meter. 5 Estimation of Ammonia in ammonium salts. 6 Polarimetric estimation of sugar
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102 - Lab #2 Quantitative Analysis of a Soluble Sulfate Steven English Lab Instructor: Dr. Campo Date: Tuesday‚ February 5th 2013 Pre-Lab Questions A. Adding the acid to the sodium sulfate solution results in an increase in the solubility of any free anions present in the sample. This will happen because the present anions will bind with the hydrogen cations present in the acid. B. The sodium sulfate is boiled because experiments have shown that barium sulfate is 50 times more soluble
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Computer The. Analysis of Alum 158 After a compound has been synthesized‚ tests should be carried out to verify that the compound fonned is indeed the compound desired. There are a number of tests that can be perfonned to verify that the compound is the one desired. In Experiment 15A‚ you prepared alum crystals‚ KAl(S04)z·12H 20. In Experiment 15B‚ you will conduct a series of tests to detennine if your crystals are really alum. The first test is to find the melting temperature of the
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