procedure with 1% ethanolic silver nitrate solution. Data/Results: Name | Sodium Iodide | Silver Nitrate | 1-Chloroadamantane | Ppt at room temperature | Ppt at room temperature | 2-chlorobutane | Ppt in the hot plate | No ppt | 1-chloro-2-butene | Ppt at room temperature | Ppt | Bromobenzene | Ppt | Ppt | 2-bromobutane | Ppt at room temperature | Ppt at room temperature | 2-chloro-2-methylpropane | Yellow
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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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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 test: WE + lead acetate 5 (aq) = black ppt 5. Nitrite: Pungent light brown gas 1. Starch-iodide test: WE + dil H2SO4 (or dil acetic acid); boil‚ then add solid KI + fresh starch sol = deep blue colouration Group II (conc H2SO4 group) – Cl(chloride)‚ Br- (bromide)‚ I- (iodide)‚ NO3- (nitrate)
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| White ppt‚ AgCl(soluble in 12M HCl‚ soluble in sln of good complexing agent‚ 6M NH3) | White ppt‚ PbCl2(soluble in hot water‚ soluble in 12M HCl‚ soluble in sln of xs NaOH) | Soluble – no ppt | Soluble – no ppt | Soluble – no ppt | Na2CO3 | White ppt‚ Ag2CO3(soluble in 6M HCl‚ soluble in sln of good complexing agent) | White ppt‚ PbCO3(soluble in 6M HCl‚ soluble in sln of good complexing agent) | Blue ppt‚ CuCO3(soluble in 6M HCl‚ soluble in sln of good complexing agent) | Green ppt‚ NiCO3(soluble
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like: ‘Tab.3.12’; ‘p.113’; ‘Fig.11.42’; ‘Ex.14.7; ‘Example’ or ‘Poh (1991)’. And so on. Copyright © 2014 McGraw-Hill Education (Australia) Pty Ltd • A slide without anFundamentals of Corporate ‘made’Ross et us. identifier is Finance 6e by by al. PPTs to accompany Learning Objectives Ch. 1 LO1.1 Understand the basic types of financial management decisions and the role of the financial manager. LO1.2 Understand the goal of financial management. LO1.3 Understand the financial implications
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PART 4 FUNDAMENTAL MACROECONOMIC CONCEPTS Chapter 8 The circular flow Copyright © 2011 McGraw-Hill Australia Pty Ltd PPT slides to accompany Economics for Business 4e by Fraser‚ Gionea & Fraser 8-1 Lecture plan • The exchange flow between households and the business sector – The two-sector economy • • The exchange flows with financial markets – The financial sector and the three-sector economy The exchange flows between households‚ businesses and government – The
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w w ap eP m e tr .X w om .c s er UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS General Certificate of Education Advanced Subsidiary Level and Advanced Level *8712516860* CHEMISTRY 9701/36 Advanced Practical Skills 2 October/November 2012 2 hours Candidates answer on the Question Paper. Additional Materials: As listed in the Confidential Instructions READ THESE INSTRUCTIONS FIRST Write your Centre number‚ candidate number and name on all the
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H4N+ = no color Cobaltnitrite test for K+: -Heat NH4+ off -In a small test tube/vial‚ or spot plate and place 10-15 drops of solution to test -Then add a drop of 6M HAc and 2-3 drops of sodium cobaltnitrite reagent -Observe - ppt forms = K+ and/or H4N+ - no ppt = No K+ or H4N+ Blue Litmus test for H4N+: -Mix the sample in DIW -Add 6M NaOH -Suspend damp red litmus -Observe - red litmus turns blue = H4N+ pH test: -Test sample solution with Indicators -2 HSO4 ; 3-5 Al(OH2)63+;4 Cu2+;
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and added 2 drops of HCl and got white ppt which correlates with the positive control. 2) Centrifuged the ppt and soln‚ then discarded soln and washed ppt and centrifuged again. 3) I added 2mL of H2O‚ put the test tube in the hot water bath and stirred for 3 minute with a stirring rod. 4) I then decanted the solution into another test tube. 5) I added one drop of 6M acetic acid and 3 drops of 1M K2CrO4‚ which formed a positive confirmation where yellow ppt was formed‚therefore it contained Pb+2
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Na2SO4 Al2(SO4)3 KOH MgCl2 FeCl3 Ba(NO3)2 Milky ppt Milky ppt NR NR Yellow ppt Na2SO4 NR NR NR Peach ppt Al2(SO4)3 NR NR Orange ppt KOH NR Carrot Orange ppt MgCl2 Lemon yellow ppt FeCl3 Set #2 KCl MgCl2 Na2SO4 NaOH BaCl2 MgSO4 KCl NR NR NR NR NR MgCl2 NR NR Cloudy ppt NR Na2SO4 NR Cloudy ppt NR NaOH NR NR BaCl2 Cloudy ppt MgSO4 Questions: 1. On the attached
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