Aslam o aliekum every one! Maheen: good morning lovely audience out there! Saman: I hope you guys are enjoying THIS COLORFUL EVENT! As salman has aready told we’re here to carry on the rest of the event! AHMED ABDULLAH Maheen: we all know larko ki cricket team main aik esa student hai‚ who is very very very obedient in class‚ and you can actually see the respect for the teachers in his eyes! Saman: the next title is for one that person who himself sets an admiring example Maheen: lets welcome
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drops of HCl. B1) Two drops of HCl and two drops of BTB. C1) Two drops of NH4OH and one drop of BTB. D1) Two drops of HCl and two drops of blue dye. A2) Two drops of blue dye and two drops of NaOCl. One drop of HCl was then added. F) Two drops of KI and two drops of Pb(NO3)2. G) Two drops of NaOH and two drops of phenolphthalein. H) Two drops of HCI and two drops of phenolphthalein. B2) Two drops of NaOH and two drops of AgNO3. C2) Two drops of AgNO3 and two drops of NH4OH. This mixture was
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iodide‚ starch‚ sodium thiosulfate‚ and hydrogen peroxide. PROCEDURES TO BE USED Kinetics of Hydrogen Peroxide Before starting any step in this lab‚ five 250mL beakers must be obtained‚ cleaned‚ and dried. Also‚ this lab requires solutions of buffer‚ KI‚ starch‚ Na2S2O3‚ and H2O2. Other lab equipment to be used includes
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05_SSLM_p227_294 8/19/04 11:47 AM Page 271 Name ___________________________ Chapter 23 • Date ___________________ Functional Groups Class __________________ SMALL-SCALE EXPERIMENT VITAMIN C IN TABLETS 38 Small-Scale Experiment for text Section 23.3 OBJECTIVES • Determine the vitamin C content of vitamin C tablets by iodometric titration. • Observe the oxidation of vitamin C in aqueous solution. INTRODUCTION Vitamins regulate biochemical reactions that take
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parallel chemical tests ARMSALCEDO ARMSALCEDO alanx3@yahoo.com EXPERIMENT EXPERIMENT 8 OBJECTIVES CONCEPTS REAGENTS PROCEDURE RESULTS DISCUSSION Reagents OH 8 OBJECTIVES Reagents Chemical Analysis Anhydrous ZnCl2 10% KI 10% K2Cr2O7 6M H2SO4 6M 6M NaOH conc. HCl DNPH reagent Tollen’s reagent 5% aq. NaClO OH CONCEPTS HO 1° alcohol 2° alcohol 3° alcohol REAGENTS PROCEDURE O O RESULTS DISCUSSION H IR ANALYSIS H Ketone IR ANALYSIS Aldehyde
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The Major Problems of Historical Research By Adeyemi Balogun Sharapha In the conduct of historical research‚ the research student faces many problems which include choice of topic‚ funding‚ language barriers‚ source problems to mention but a few. The first problem which a historical researcher might face is that of choosing topic. It is a common phenomenon especially for a young researcher to jump at an attractive topic without knowing the rigors involved in researching
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would be: 21=2 The Experimental Mole Ratio would be: 0.0030.005=0.6 Therefore Since‚ the ratio theoretical mole ratio > the experimental mole ratio 2 > 0.6 KI is the limiting reagent. Part 2: (To determine the Percentage Yield) * Given Information: * 0.003mol ± 0.000015mol of KI is reacted To find the number of moles of Pbl2 that is formed with the given
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background. a. NaHCO3 & HCI- bubbles form b. HCI & BTB c. NH3 (Ammonia) & 1 drop of BTB- record expected color & actual result. d. HCI & blue dye e. Blue dye & NaOCI. Record findings‚ then add 1 drop of HCI f. NaOCI & KI. Observe‚ then add 1 drop of starch. See starch turns black g.KI & Pb(NO3)2. Describe precipitate formed. h.NaOH & phenolphthalein. Observations of Chemical Changes i. HCI & phenolphthalein. With phenolphthalein & acid what color
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reaction was a light blue color‚ then when one drop of HCL was added it first became clear then turned a yellow/orange color. That yellow stayed concentrated at the top segregated. F / A7 NaOCI and KI Automatically turned brown and when the starch was added it turned black. G / A11 KI and Pb(NO3) Automatically turned a cloudy
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“Ka pai ki mua‚ ka pai ki muri” A close viewing Analysis of Turangawaewae-a place to stand a New Zealand short film This is a close-viewing analysis of the short film turangawaewae - A place to stand. Directed by Peter Burger (Ngai Tauiwi). Produced by Catherine Fitzgerald (Ngai Tauiwi). Written by Wiremu Grace (Ngati Toa‚ Ngati Porou). Wi Kuki Kaa (Ngati Porou‚ Ngati Kahungunui) portrays a returned Maori servicemen from Vietnam. Nancy Brunning (Ngati Raukawa‚ Ngai Tuhoe) portrays his daughter
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