Cu2+(aq) + Zn + Cu + Zn2+(aq) (Balanced) Stage 1 Dissolution of Copper Mass of vial & copper = 3.598g Mass of vial = 2.504g Mass of copper = 1.094g Calculate the moles of copper‚ this is the mass of copper (in g) divided by the atomic mass of copper‚ (63.5 g/mol) Moles of copper = mass (g) ÷ (63.5 g/mol) = 0.017g/mol Copper description Solid ribbons‚ of a reddish-brown metallic appearance. HNO3 description Clear transparent
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Moles of Iron and Copper Lab Data and Observations Before the reaction: Mass of empty‚ dry beaker: 153.44g Mass of beaker + copper (II) chloride: 161.44g Mass of two iron nails: 7.27g After the reaction: Mass of two iron nails: 6.29g Mass of beaker + copper (dry): 154.50g Questions and Calculations 1. a) Mass of two iron nails before the reaction – Mass off two iron nails after the reaction = Mass of iron used in the reaction = 7.27g – 6.29g = 0.98g
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Running head: COMPOUND NOUNS IN VIETNAMESE AND ENGLISH COMMERCIAL TEXTS Compound Nouns in Vietnamese and English Commercial Texts A Contrastive Analysis Abstract Learning has always been a challenging process to obtain knowledge. This is undeniably true in studying economics in a different language. The quest to understand a concept itself may present some difficulties. Yet‚ comprehending the wordings that may lead to such understanding can also be overly frustrating. Through reading some
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Amanda Carlson Amy Ruppert English 101‚ 9am March 11‚ 2011 Synthesis Paper Many Americans have included caffeine as a part of their daily diet whether they realize it or not. In fact‚ “caffeine is the most consumed psychoactive substance in the world” (Ruxton How is this instead (Caffeine is especially common throughout…) 15). It is found very especially commonly throughout every day foods and consumed mostly though through coffee‚ tea‚ soda‚ and chocolate (Spiller 200). Many Americans
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Coordination Compounds are compounds that contain at least one complex ion. Complex ion is an ionic species consisting of a metal ion bounded one or more Lewis bases. Coordination complex is the product of a Lewis acid-base reaction in which neutral molecules bond to a central metal atom by coordinate covalent bonds. A coordinate covalent bond is a covalent bond in which one atom supplies both electrons. Ligands are atoms or molecules with electron pairs available‚ and they may be neutral or negatively
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Multistep Synthesis of Tetraphenylcyclopentadienone Author: Instructor: Date work performed: 10.18.2012--10.25.2012 Date work submitted: 11.01.2012 Abstract: The aim of this experiment was to perform a multistep synthesis to form tetraphenylcyclopentadienone. The first step of the reactions was to synthesize benzoin from the condensation of benzaldehyde. A yield of 28.91% benzoin was obtained. The MP of benzoin was 127O-130O C and the IR spectra displayed a carbonyl peak at 3415 cm-1
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Abstract This experiment is about the synthesis of 3-nitrobenzaldehyde through nitration. The nitration of benzaldehyde is an example of an electrophilic aromatic substitution reaction‚ in which a proton of an aromatic ring is replaced by a nitro group. Many aromatic substitution reactions are known to occur when an aromatic substrate is allowed to react with a suitable electrophilic reagent‚ and many other groups besides nitro may be introduced into the ring. Although the reaction produced a low
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In Copper Sun‚ Amari is a happy teenage and she is a slave. She was engaged to the most handsome man in her African village. One morning Amari goes outside and her little brother kwasi was hanging from a tree being silly and Amari goes to get her mom some vegetables for breakfast and out of nowhere white men enters Amari’s village setting things on fire and killing people. After a while then men took chained and shackled her and put her into a slave ship. A few weeks later Amari was sold to a man
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chloride in case of a cut leading to bleeding? 1 (2) Why does a tetrahedral complex of the type [MA2 B2] not show geometrical isomerism? 1 (3) How do you account for the miscibility of ethoxyethane with water. 1 (4) Give the IUPAC name of the organic compound 1 O II (CH3)2 C CH C CH3 = − − (5) Name the monomers of nylon 2 or nylon 6 ploymer. 1 (6) Give one example of an artificial sweetener used by the diabetic patients. 1 (7) Direct nitration of aniline is not carried out. Explain why? 1 (8)
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Hang University of Education ENGLISH AND VIETNAMESE GREETINGS 2 As we all know‚ differences in culture are one of the main problems leading to a failure of communic Premium4090 Words17 Pages Compound Nouns in English and Vietnamese Running head: COMPOUND NOUNS IN VIETNAMESE AND ENGLISH COMMERCIAL TEXTS Compound Nouns in Vietnamese and English Commercial Texts A Contrastive Analysis Abstract Learning has always been a challenging process to obtain knowledge. This is undeniably true in studying economics
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