Discussion In the model systems (solutions and paper)‚ which samples browned the fastest and why? Which samples did not go brown and why? Why did the paper brown so rapidly compared to the solutions. What caused any significant differences between the model and real systems? In particular are there other ingredients in the cookie that could take part in the reactions or is the heating different in some way? Sample A and sample B are overlap after fry the paper. Sample B is more browning
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Part 1. Hydrocarbon Nomenclature From International Union of Pure and Applied Chemistry (IUPAC) General Form of IUPAC Nomenclature [branching substituent(s)] Root [Suffix] Rules: 1. Identify the longest continuous chain of carbon atoms. This chain determines the parent name (root) of the alkane. The parent suffix for alkanes is‚ not surprisingly‚ -ane. For chains of equal length‚ pick the one with the most substituents. (Note: I number all possibilities going from left to right
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is responsible for the production of nucleotide precursors and NADPH. The latter one is critical for the protection of trypanosomatids against oxidative stress and for biosynthetic reactions. In the PPP‚ the Rpi enzyme catalyzes the reversible isomerization reaction between D-ribose-5-phosphate (R5P) and D-ribulose-5-phosphate (Ru5P) (12) (13) (14)
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2Zn ⎯⎯→ CH ≡ CH + 2ZnBr2 Iodoform reacts with silver powder to give acetylene. 2CHI3 + 6 Ag ⎯⎯→ C2H2 + 6 AgI Δ Kolbe’s electrolysis : Sodium or potassium salts of unsaturated dicarboxylic acids‚ on electrolysis will give alkynes. Potassium maleate or potassium fumerate on electrolysis gives acetylene CH − COOK HO − H electrolysis CH || + ⎯⎯ ⎯ ⎯⎯ ⎯→ ||| + 2CO 2 + 2KOH + H2 ⎯ CH − COOK HO − H CH at anode at cathode Physical properties : Pure acetylene is colorless‚ odourless gas‚ presence
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1 CHM 1321 Second Midterm Apr 1 – 2011 (Prof. S. Gambarotta) Your Name: ___________________ Student #: ______________ Exercise key Exercise key 1
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Lab 2B: Diels-Alder Reaction Zhouxiang Xu TA: Bhumasamudram Jagadish Experiment performed: Jan 28th‚ 2014 Report Due: Feb 10th 2014 Result: For the Diels-Alder reaction: Maleic acid is 0.002 mol 2‚3-dimethyl-1‚3-butadiene is 0.002 mol The theoretical yield is 0.36g Cycloaddition product is 0.358g (maybe it was not completely dry when I weighted.) The % yield of Diels-Alder reaction is 99.4% For the hydrolysis: The theoretical yield of hydrolysis is 0.396g The
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Sodium‚ Hypertension‚ and an Explanation of "Lag Phenomenon" in Hemodialysis Patients Author: Zbylut Twardowski‚ MD‚ PhD I. INTRODUCTION Healthy kidneys clean your blood by removing excess fluid‚ minerals‚ and wastes. They also make hormones that keep your bones strong and your blood healthy. When your kidneys fail‚ harmful wastes build up in your body‚ your blood pressure may rise‚ and your body may retain excess fluid and not make enough red blood cells. When this happens‚ you need treatment
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there is not enough oxidizing agent present. CH3OH + [O] ==> HCHO + H2O Figure 2 Dehydration Dehydration occurs in methanol when combining two molecules by removing water. The reaction below shows that methanol is reacting with Dimethyl Sulfate to remove water from the two molecules. 2 CH3OH + H2SO4 ==> (CH3)2SO4 + H2O Substitution This reaction occurs when a hydrogen atom is replaced by a different functional group. In this reaction in shows
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Synthesis of Aspirin Ling Tecson Gamido‚ Mitchiko Mariel M. Mizukami Abstract Acetylsalicylic acid‚ or also known as aspirin is known to be a drug that relives people of pain and is commonly used even today. It is synthesized from salicylic acid and ethanoic anhydride‚ both of small quantities. Phosphoric acid was used as a catalyst in the synthesis to speed up the process. Esterification is involved and the final product is aspirin with the presence of acetic acid as the byproduct. In order
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Name: __________________________________ Teacher: ________________________________ DO NOT OPEN THE EXAMINATION PAPER UNTIL YOU ARE TOLD BY THE SUPERVISOR TO BEGIN Chemistry 2202 FINAL EXAMINATION June 2010 Value: 100% General Instructions This examination consists of two parts. Both parts are contained in this booklet and further general instructions are provided on appropriate pages. Part I – Multiple Choice (40%) Select the letter of the correct response from those provided. EITHER
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