Redox

In the results of the first trial, two lemons were used and the light bulb did not turn on. The voltage was 1.72v. When 4 lemons were used, the light bulb still did not turn on. The voltage was 2.89v. Then, with 6 lemons, the light bulb finally turned on. The voltage was 3.96v. The average voltage for trial one was 2.86v, and the range for trial one was 2.24v. In the first trial, the mode was not applicable. In the results of the second trial, two lemons were used and the light bulb did not turn…

The objective of this experiment was to study the stereochemistry of the borohydride reduction of camphor. Sodium Borohydride is a reducing agent that is able to reduce ketones and aldehydes. In this case, camphor, which contains a ketone, was reduced with sodium borohydride. Reduction of a carbonyl with sodium borohydride occurs when the hydride ion adds to the carbonyl carbon, breaking the C=O bond and creating a new C-H bond. When the reduction occurs, the hydride transfer will occur on the…

Reduction involves increasing the number of carbon hydrogen bonds by adding hydrogen across a double or triple bond which results in an increase in electron density at the carbon atom. Organic functional groups containing double and triple bonds which undergo reduction are unsaturated. The reduction of the double bond by addition of hydrogen atoms results in the product being fully saturated. Metal hydride reducing agents that have different reactivities toward specific functional groups are…

Oxyhemoglobin Dissociation Curve A oxyhemoglobin dissociation curve is a tool used to show the relationship between the saturation of oxygen and the partial pressure of oxygen. It directly tells us how a person own body is utilizing oxygen intake, how carbon dioxide levels are being regulated, as well as how efficient the hemoglobin in our body binds and release oxygen molecules to the appropriate tissues that require it. Normally the oxygen that our tissues need in order to function properly…

Beginning Question: How effectively and efficiently can biphenyl be synthesized by a Suzuki coupling reaction? Claims: Biphenyl synthesized by a Suzuki coupling reaction was effectively isolated and then characterized using TLC, melting point, IR and 1H NMR tests. However, this process was not efficient because it had a poor pure yield of 22%. Evidence: The goal of the experiment was to synthesize biphenyl product by a Microwave-assisted Suzuki reaction and this was carried out using 1…

INVESTIGATE AN ASPECT OF REDOX SYSTEM/REACTION Research Question: Does a higher voltage lead to more mass on graphite? INTRODUCTION Hypothesis: Higher voltage leads to more mass amassed on graphite electrode. Electrolysis- the process in which electric current passes through a solution to effect a chemical change. In this case there is copper, copper sulphate and graphite. In a electrolysis there is an electrolyte which is the copper sulphate, the anode which is the graphite. This is the…

Microbiological Control 1. Evaluation of Potentially Hazardous Foods Food is potentially hazardous food if it consists in whole or in part of milk or milk products, eggs, meat, poultry, fish, shellfish, or other ingredients capable of supporting rapid and progressive growth of infectious or toxigenic micro-organisms. Specific recommendations for ensuring the safety of potentially hazardous food are stated along with sanitary practices recommended for the storage, preparation, display, and…

best morphological foundation for fast redox reaction and charge accumulation, its potential application in high-performance supercapacitor has been investigated by cyclic voltammetry (CV), galvanostatic charge-discharge and electrochemical impedance (EIS) measurements in 6 M KOH solution. Figure 7(a), Shows CV curves of NCA-L-@NF, NCA-L@G-NF and NCA-L@ BG-NF with three different feeding mole ratios are recorded at scan rates of 5mVs-1. An obvious pair of redox peaks in the potential range of 0…

aqueous sample. I tested three different samples containing different percentage amounts of ethanol in them; Listerine, Terra Fresca Wine and the last is a mixture of ethanol and water that was made by me. The three different methods compared are the redox titration method which involves the oxidation of ethanol to ethanoic acid and then titrating the residue with sodium thiosulfate, which would then be used to calculate the number of moles of ethanol present in the original sample. The method…

This essay will be talking about Reactions and how it affects substances.A reaction is a chemical process in which two or more substances act on each other and are changed into different substances, or one substance changes into other substances.There are eight reactions we will be talking about and they are Decomposition,Combustion,Acid and Base,Synthesis,Single-replacement,Double-replacement,Precipitation,and Redox.In the world today there are many reactions out their but we will only be…