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Chemistry Lab Report Samples

Experiment 4:Synthesis of Dibenzalacetone (Aldol Reaction)
Filtration of the product was done using a Hirsch funnel, ad the Craig tube method was used for purification and recrystallization of the product as per the SC214 practical manual, pge 42. Mlting point and IR spectrum were also obtained for the characterization of the...
Pages: 4 (1000 words) , Lab Report , Milgram Experiment
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EXP #4 Synthesis Zinc Iodide
This led to the formation of the precipitate. Te mass of the solid and the boiling tube was measured as well. Te observations with regard to the color changes are as follows. I the beginning the color is dark brown. Te color transitions to a...
Pages: 4 (1000 words) , Lab Report , Synthesis , Color of Water
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The Synthesis of Sulfanilamide
The flask is then rinsed using 5ml cold water and then transferred to the beaker containing the ice resulting in the formation of a precipitate. Te precipitate is then stirred to facilitate the breakage of bigger lumps. Te beaker and the flask are rinsed using...
Pages: 4 (1000 words) , Lab Report , Protein Synthesis , Meningitis
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Multiple Synthesis
The flask was placed in a water bath with a temperature of 60⁰C to evaporate off some ethanol and then cooled in an ice bath. Te color of the solution was noted down.00 grams of the benzoin provided were added to a 125 mL Erlenmeyer...
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Enzyme Amylase Lab Report
After each test, te observations made were recorded. Agraph of the enzyme activity against the amount of amylase at 10 minutes was then plotted. 1mL of 1% starch solution was placed in two test tubes. Oe of these tubes was placed in a water bath...
Pages: 5 (1250 words) , Lab Report , Color of Water , Bram Stoker Dracula
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Experiment to determine the presence of a single nucleotide polymorphism in a gene
The agarose gel was placed into the apparatus of electrophoresis, hving the wells on the black end of the cathode. TE running buffer was added to cover the gel to a level of 1-2 mm over the surface. About 4µl quantity of samples having 100ng...
Pages: 4 (1000 words) , Lab Report , Milgram Experiment , MC Escher
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Thermochemistry Hess' law
The temperature and volumes for each was measured. Te sodium hydroxide solution was then added into the Styrofoam cup containing the solution of hydrochloric acid. Te mixture was stirred with the thermometer until the highest temperature was reached. Acording to the result obtained from the...
Pages: 5 (1250 words) , Lab Report
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Preparation of , unsaturated carboxylic acid
The NMR spectrum revealed peaks at chemical shifts of 5. 9 and 6. 2, tese correspond to vinylic (-C=C-H) protons in the product. Te vinylic protons normally produce peaks at chemical shifts between 4. Te chemical shift at 1. 6 is due to allylic (C=C-C-H)...
Pages: 4 (1000 words) , Lab Report , Chemistry
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COLORIMETRIC DETERMINATION OF SALICYLATE IN URINE
The solution was then made up to the mark of the volumetric flask using distilled water. Al the solutions were then stoppered, mxed thoroughly and then left to stand for five minutes. Uing beer lamberts law, cncentration of salicylate can be easily determined (Shaw, 2011)....
Pages: 6 (1500 words) , Lab Report , Wage Determination
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Experiment 9 formal report
This explains the concept of ideal gas law, alaw that combines relationship of all the four essential variables of pressure, tmperature, vlume and the number of moles. Ieal gas law is written as PV = nRT where n = number of moles, P= pressure, T=...
Pages: 5 (1250 words) , Lab Report , Prison Experiment , Milgram Experiment
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Measuring The Heat of Decomposition of Hydrogen Peroxide
The concentration of the H­2O2 was also recorded. 60 mL of 0. 5 KI solution was obtained. 40 mL of the H­2O2 solution was measured into a graduated cylinder and the temperature probe plugged in. 10 mL of KI was measured into another graduated cylinder...
Pages: 5 (1250 words) , Lab Report
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Synthesis of fruity esters lab report
Or scents that are applied to the body despite their ‘fruity’ tastes and odors because they undergo hydrolysis and yield organic acids when they come in contact with sweat hence producing an unpleasant smell (Pavia, Lpman and Kriz 15). I this experiment a fruity ester...
Pages: 4 (1000 words) , Lab Report , Synthesis , Identity
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Molecular Fluorescence Analysis of Proteins
The tyrosine band was then obtained by subtracting the buffer spectrum from the tyrosine spectrum. Al these steps were repeated for serum albumin making sure to save all the spectra. 0mL of 10 ppm riboflavin solution was measured into a 100 mL volumetric flask and...
Pages: 4 (1000 words) , Lab Report
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Molecular Fluorescence Analysis of Proteins
The excitation spectrum plots the fluorescence intensity at a constant emission wavelength as a function of the excitation wavelength, wereas the emission spectrum plots the fluorescence intensity against the emission wavelength during irradiation at a particular excitation wavelength. Te power of fluorescence radiation is proportional...
Pages: 4 (1000 words) , Lab Report
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Organic Chemistry Lab: Isolation of Caffeine from a Tea Bag
Conventional breeding, pysicochemical methods, mcrobial degradation and genetic engineering are some of the methods employed in decaffeination (Fan et al. Tree methods of extraction of caffeine are frequently used. Te first is the direct contact decaffeination that uses organic solvent methylene chloride. Te process removes...
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Magnesium Oxide by Gravimetric Analysis
The Bunsen burner was removed from the flame and allowed to cool for three minutes. Te lid of the crucible was lifted using a pair of crucible tongs to allow the entry of air into the crucible. Te crucible was heated again for another 5...
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The use of pipettes;precision and accuracy
Automatic pipettes are used together with disposable tips. Te automatic pipettes are widely used in the biochemical, bological, mcrobiological teaching, ad laboratories involved in research for the transfer of small liquid volumes. Te glass pipettes that are mostly used in the chemical laboratories do not...
Pages: 13 (3250 words) , Lab Report , The Flea
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Physical Chemistry Lab Report
To counteract this precipitation performed slowly in an acidic environment. Te acid solution mixture is not affected by anions of weak acids that might also form precipitates with the silver ions. Pecaution must be taken to avoid a large excess of silver ions since it...
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Physical Chemistry Lab Report
This lab report covers on the employment of gravimetric analysis in the mass determination of chlorine within an unknown chloride solution. I determining the mass percent of chlorine, apure precipitate containing chloride ions must be prepared. Aong the elements that form insoluble chlorides include Pb2+,...
Pages: 5 (1250 words) , Lab Report , Physical Education , Physical Fitness
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Unknown compound
Be tested for characteristic reactions by reacting them with dilute nitric acid, dlute hydrochloric acid, aueous barium nitrate/chloride, slver nitrate, amonium hydroxide or sodium hydroxide. Tese reagents are used in determining presence of anions (negatively charged particles) in unknown samples, wich must be in aqueous...
Pages: 10 (2500 words) , Lab Report , The Color Purple , Color of Water
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