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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Coffee Bean‚ Inc. (CBI)‚ is a processor and distributor of a variety of blends of coffee. The company buys coffee beans from around the world and roasts‚ blends‚ and packages them for resale. CBI currently has 40 different coffees that it sells to gourmet shops in one-pound bags. The major cost of the coffee is raw materials. However‚ the company’s predominately automated roasting‚ blending‚ and packing process requires a substantial amount of manufacturing overhead. The company uses relatively little
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NAME-FOSU-MENSAH EMMANUEL ID NUMBER-10372921 VITAMINS Vitamins are organic compounds which are needed in small quantities to sustain life. We get vitamins from food‚ because the human body either does not produce enough of them or none at all. An organic compound contains carbon. When an organism cannot produce enough of an organic chemical compound that it needs in tiny amounts‚ and has to get it from food‚ it is called a vitamin. Sometimes the compound is a vitamin for a human but not for
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the trans‚ trans-1‚4-diphenyl-1‚3-butadiene‚ which is formed by a Wittig reaction along with the cis‚ trans isomeric diene. The reaction is carried out in two steps. First the Wittig salt is obtained through a simple nucleophilic displacement of chloride ion by triphenylphosphine. When treated with base‚ the Wittig salt forms a ylide which is a carbanion that acts as a nucleophile and adds to the carbonyl group. In this experiment‚ cinnamaldehyde is used as the carbonyl compound and yields mainly the
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substance (typically‚ a corrosive or sour-tasting liquid) that neutralizes alkalis‚ dissolves some metals‚ and turns litmus red. Ionic Dissociation: Dissociation in chemistry and biochemistry is a general process in which ionic compounds (complexes‚ or salts) separate or split into smaller particles‚ ions‚ or radicals‚ usually in a reversible manner. Strength of Acids: The strength of an acid refers to its ability or tendency to lose a proton. There are very few strong acids. A strong acid is one that
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The film “Salt of the Earth” by Michael Wilson is a 1954 film that shows the prejudice ways against long time resident Mexican-American workers. It takes place in a small town in New Mexico. After a mining accident‚ workers began protesting the unfair wages and serious hazardous working conditions. A man by the name of Ramon helps the workers organizing the protest but is also found treating his wife Esperanza unfairly as well and that was a concern because why try and protest about someone being
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Kayla Bruene Gen Bio II Lab 11am Bean Count Lab In the Schnabel method of estimating number of animals‚ the number of recaptures has been assumed to follow a Poisson distribution. This approximation is useful in testing differences in population levels when the Schnabel method is used for estimation‚ since the distribution of recaptures from one population‚ conditional on the total number of recaptures from both populations‚ is approximately binomial with parameters n and p‚ where
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Experiment #7: Acids‚ Bases and Salts Mabag‚ Viannery D.‚ Mangune‚ Paolo D. Chem 14.1‚ MAB1‚ Ms. Angelyn del Rosario March 8‚ 2010 I. Abstract The experiment allowed students to explore different electrolytes and classify them into acids‚ bases and salts by using different indicators or by measuring the pH levels of each. The experiment also helped students classify different substances through their conductivity properties. The preparation of a 1 M stock solution from NaOH pellets diluted to a
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ASIAN J. EXP. BIOL. SCI. VOL 4 (1) 2013: 61-68 © Society of Applied Sciences ORIGINAL ARTICLE Impact of Gamma Rays on the Seed Germination and Seedling Parameters of Groundnut (Arachis Hypogaea L.) 1* 1 1 1 1 M. Aparna. ‚ Anurag Chaturvedi ‚ M. Sreedhar. ‚ D. Pavan Kumar ‚ 2 3 P. Venu-Babu and R. K. Singhal . Quality Control Laboratory‚ Acharya N.G. Ranga Agricultural University‚ Rajendranagar‚ Hyderabad- 500 030‚ A. P‚ India 2 Nuclear 3Agriculture and Biotechnology
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(Zhou et al.‚ 2003). Castor bean (Ricinus communis L.) is not only important oilseed crop but also has tolerance to many abiotic stresses like heavy metal‚ salinity and drought (Babita et al.‚ 2010; Bauddh and Singh‚ 2012b). These properties of castor bean make them a capable candidate for amelioration of such soils with some value added benefits like biofuel productions (Barnes et al.‚ 2009). Wu et al. (2012) conducted a study and found that after planting castor bean for two continuous growing seasons
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