4-nitroaniline had a percent recovery of 18.67% and naphthalene had a percent recovery of 80%. Naphthalene had a relatively high percent recovery‚ and the loss of product can be explained by error inherent. The low percent recovery of 4-nitroaniline is mainly due to the fact that anhydrous sodium sulfate was accidently added to the flask. Therefore‚ some product was lost as the aqueous solution with the protonated 4-nitroaniline reacted with the drying agent. However‚ more errors to explain the results
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WHO KILLED CANADIAN HISTORY? J.L. Granatstein As one of Canada’s most prominent historians‚ Jack Granatstein regularly comments on historical questions and public affairs in the media‚ including issues such as foreign and defense policies‚ Canadian-American relations‚ the military and public service. In his book Who Killed Canadian History?‚ Granatstein continues his tradition of scholarly discussion on the progressively increasing deterioration of Canadian history. It is because of this dire
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Relate the role of the base pairing rules to the structure of DNA. The bases in a strand of DNA relate to the base pairing rule due to the combination of GC and AT‚ make equal strand‚ that is held together by a hydrogen base. 4. What is the primary function of DNA? What is DNA long chains of? The primary function of DNA is to code for information. DNA consists of long chains of amino acids. 5. State the names of the nitrogenous bases using purines and pyrimidines
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Pat 1 Synthesis of 4-aryl-6-indolylpyridine-2-carbonitriles and evaluation of their biological activity Synthesis of 6-indolyl-4-aryl-3-cyanopyridine-2-one (1a-e) Employing the MCRs approach and microwave irradiation‚ an equimolar amounts of aromatic aldehyde‚ 3-acetylindole‚ ethyl cyanoacetate were reacted with excess of ammonium acetate in one-pot‚ reaction‚ under the microwave irradiation‚ afforded a novel series of 4-aryl-6-indolyl-nicotinonitrile-2-one derivatives 1a-e. Ethylene glycol was
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Name: Lucy Date: 7/1/2013 USL-3 Marina For the project of Usl-3‚ I’ve done a poster about Marina. I have gathered all the different phrases and words and stick it on the poster and done a presentation about Marina. In the poster that I did‚ I mentioned how Marina changed before and after she lived with Anna. I found out that I mentioned quite many details about Marina changed‚ thus I decided to choose the new her for my essay‚ and dedication and willingness are my main theme. In the following
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All children develop but this is at different levels. In this section I am going to look at and discuss how four to five year olds develop physically and the language and communication development of four to five year olds. And then in the next section look at the same developments but for older children 8-16 years old. Physical development relates to physical movements. Becoming independent is closely linked to physical development. Communication and language development relates to the ability to
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What happens after death? My current opinion At this point in time‚ I think that when you die‚ the body decomposes and rots away along with the brain‚ thoughts‚ experiences ect… At the point of death‚ energy leaves your body which previously granted you consciousness and the ability to carry out the life processes. This is the soul‚ when the soul exits the body; it is judged by the ‘higher power’ and then either sent to heaven or sent back to Earth as a punishment. It takes on another body generally
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“11 year old Brooklyn girl feared paralyzed by stray bullet moves arms in sign of hope‚ New York Daily News June 3‚ 2013” by Chelsia Rose Marcius‚ Jennifer Fermino and Barry Paddock 2 Family Conflict The article I chose to discuss is titled “11 year-old Brooklyn girl feared paralyzed by stray bullet moves arms in sign of hope” from the New York Daily News by Chelsia Rose Marcius‚ Jennifer Fermino and Barry Paddock. According to the article ; Tayloni (Tutu) Mazyck; was shot
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PLANT CELL AND ANIMAL CELL LECTURER : ENCIK AZHAR GROUP’S NAME : 2. Mohd Alimi 3. Suraya Hani 4. Norhaswana CONTENT INTRODUCTION 3 WHAT IS CELL? 4-5 HISTORY OF CELLS DISCOVERY 6 ANIMAL CELL 7 PLANT CELL
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atom is 24 g‚ find mass of 1 Mg atom. 2. Find mass of 1 molecule C2H6. (C=12‚ H=1) 3. Find mole of 6‚9 g Na. (Na=23) 4. Find mass of 0‚2 mol P4 . (P=31) 5. Find mole of 4‚48 liters O2 under normal conditions. 6. Find mass of Fe in the compound including 4‚8x1023 O atoms ;Fe3O4 . 7. 1. Find relation between number of molecules of given matters; 8. I. C2H2 that includes 2mol H atom 9. II. CH4 that includes N atoms (N is Avogadro number) 10. III. C3H4 that includes 1‚5 N C atoms 11. Find relation between
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