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acidic hydrogen atoms Essay Examples

734 total results

A Lab Report on the Formation of an Ester Using the Acid Catalyzed Reaction between an Alcohol and a Carboxylic Acid (827 words, 4 pages)

Formation of an Ester labPurposeTo explore the acid catalyzed reaction between an alcohol and a carboxylic acid to produce esters.BackgroundCarboxylic acids are very different from inorganic mineral acids. One important difference is the vast array of reactions that carboxylic acids undergo to form new classes of organic compounds. The primary ... Read More

A Definition of Atomism and the Atomist Movement (1186 words, 4 pages)

The concept of the atom in regards to the nature of reality and human existence as a rebuttal to the Parmenidean monistic system became a writtenideathrough Leucippus, Democritus, Epicurus, and Lucretius,among others. The original idea of atomism is a system usually regarded as providing insight into the microscopic structure of ... Read More

An Experiment on Para-Methoxycinnamic Acid Using a Wittig Reaction (513 words, 3 pages)

Purpose to prepare para-Methoxycinnamic Acid by using a Wittig reaction. Procedure 2.3 mL of 1.2 M NaOCH3 was placed into a dry round-bottomed flask with a stir bar, making sure to cap it to minimize exposure to moisture. The solution was then stirred. 0.50 mL (2.5 mmol) of triethylphosphonoacetate was ... Read More

The Role of Hydrogen Bonding in the Formation of H2O (493 words, 2 pages)

Water, or otherwise H2O, is one of the most essential molecules on earth in terms of life. Its molecular structure, in the form of a bent V-shaped molecule forms many hydrogen bonds, one of the most essential features of one of the most important molecules for life. The hydrogen bonding ... Read More

An Experiment Separating Histidine, Isoleucine and Aspartic Acid from an Amino Acid Solution (2861 words, 13 pages)

ObjectivesThe purpose of the following study is to isolate and analyze three amino acids (histidine, isoleucine and aspartic acid) from a mixed amino acid solution. Both ion exchange chromatography and thin layer chromatography will be used to separate and purify each respective amino acid both methods are dependent on the ... Read More

A Conduction of a Catalytic Hydrogenation Experiment (729 words, 4 pages)

Catalytic HydrogenationIntroductionHetergenous catalysts are used to perform many chemical reactions. They are used in refineries to break long chains of carbons in to shorter octane fragments that make up gasoline. The catalyst in this case is at a different phase than the substrate. Meaning that a solid catalyst on a ... Read More

An Experiment on the Reaction Rates of Iodide Ion, Bromate Ion, and Hydrogen Ion (2484 words, 15 pages)

Purpose The lab seeks to investigate rates of reactions, practicemeasuring them using the microscale technique, and examine how reactionrates change depending on various conditions.Procedure (See citation for materials list and experimental procedures). . Vonderbrink, Sally Ann. "Kinetics of a Reaction - Experiment 12." Laboratory Experiments for Advanced Placement Chemistry, Second ... Read More

An Experiment to Calculate the Molar Volume of Hydrogen Gas at Standard Temperature and Pressure (1589 words, 7 pages)

Purpose This lab seeks to calculate the molar volume of hydrogen gas atstandard temperature and pressure based on experimental data. The reactionbetween a known amount of magnesium(s) and hydrochloric acid (aq) is usedto produce hydrogen gas and measure its volume by water displacement in aeudiometer. This volume can then be ... Read More

A Lab Experiment to Determine the Value of the Dissociation Constant of a Weak Acid by Inducing Acid-Base Equillibrium (1674 words, 6 pages)

The lab seeks to experimentally determine the value of thedissociation constant (and pKa) of a weak acid by inducing acid-baseequilibrium in a solution of the acid and its conjugate base. By using thedissociation constant, the acid can be identified by comparing toliterature values of pKa. . Vonderbrink, Sally Ann. "Determination ... Read More

The Importance of pH Levels in Determining an Acid and a Base (731 words, 3 pages)

Acids and bases can be found everywhere. Acids can be found in many food substances such as vinegar and many citrus fruits like oranges and lemons. Vinegar is also known an acetic acid as the acid in fruits is known as ascorbic acid, or vitamin c. Milk even has a ... Read More

An Introduction to the Evolution of the Modern Model of the Atom (745 words, 3 pages)

Modern Knowledge of the AtomThe evolution of the modern model of the atom and our general understanding of the atom progressed over several years through many, many experiments conducted in different countries by different people. However, although these experiments, which eventually resulted in the model and information that we use ... Read More

The Environmental Dangers of Acid Rain (471 words, 2 pages)

Acid rain is a mixture of wet and dry deposited material from the atmosphere that contains higher amounts of nitric and sulfuric acids. Acid rain occurs through a chemical reaction between two compounds such as nitrogen oxide and sulfur dioxide. The compounds are then released into the air and rise ... Read More

The Dropping of the Atomic Bomb: Was It Necessary? (572 words, 2 pages)

Atomic Bomb AnalysisAlthough many believe the decision to drop the atomic bomb on Hiroshima was strictly a military measure to force Japan into an unconditional surrender it also served as a way to intimidate the Soviet Union in the post-Second-World-War era.The conflict in the pacific against Japan in World War ... Read More

The Calculation of the Energy of the Hydrogen Bond Between Two Water Molecules (849 words, 4 pages)

AbstractIn this computational experiment the energy of the hydrogen bond between two water molecules was determined, using different density functionals. The proton affinity of water was also determined using different basis sets. The main goal was to look for the best density functional to determine the energy of the hydrogen ... Read More

An Experiment to Determine the Ester From the Combination of Carboxylic Acids (578 words, 3 pages)

Carboxylic Acids and Esters Results and Discussions The purpose of this experiment was to combine certain acids and alcohols and ultimately determine the ester from the reaction based on the odor that was given off. Esters are produced through a process known as Fischer Esterfication, which is the esterification of ... Read More

An Analysis of a Laboratory Esterification Experiment on Salicylic Acid (816 words, 5 pages)

EsterificationThe purpose of this experiment was to take a sample of salicylic acid and place it through a reaction to form methyl salicylate. This reaction was accomplished by reacting the salicylic acid with methanol. Due to waters high boiling point rendering distillation an unfavorable way to remove the water from ... Read More

Citric Acid a Weak Organic Acid (582 words, 2 pages)

Citric acid is a weak organic acid whose formula is C6H8O7, it is a natural preservativeconservation and is also used to add an acidic, or sour, taste to foods and soft drinks. Nearly all living things contain citric acid and also produced by many living organisms, such as mold. It ... Read More

The History of the Atomic Bomb (675 words, 2 pages)

As technological advancements are made, it leads to many discussions on how the technology should be used and incorporated into society. The atomic bomb was an important advancement that was made in the early 1930s and it has led to a lot of controversy during World War II. The United ... Read More

A Lab Report on Determining the Concentration of Acetic Acid in Vinegar (923 words, 5 pages)

ABSTRACTThe purpose of this experiment was to determine the concentration of acetic acid in vinegar by using 0.1 M HCL and a solution of NaOH with an unknown concentration. After the experiment was conducted, it was concluded that the concentration of vinegar was 0.963M. Titration, the formula and acids and ... Read More

Geothermal Power and Hydrogen in Iceland (726 words, 3 pages)

Geothermal Power and Hydrogen in IcelandIceland is well known for its hot springs, volcanoes, geysers and cheap energy supply, as well its investment bankers, in light of the recent economic downfall. Recently the Icelandic government was discussing cuts and in fact, the largest geothermal power plant (Hellisheii Power Station) was ... Read More

A Lab Report on an Experiment with Amino Acids (710 words, 4 pages)

Sequence determination is a very powerful tool and can be used for a variety of purposes. By sequencing long chains of amino acids, or proteins, the biological functions of said units can be better understood. A more specific result of this understanding can be shown in the field of pharmaceuticals. ... Read More

The Production of Aspirin, Acetylsalicylic Acid, and Acetic Acid Through the Process of Reaction of Salicylic Acid aaaand Acetic Anhydride (732 words, 4 pages)

ObjectiveThe objective was to react salicylic acid with acetic anhydride to produce aspirin, acetylsalicylic acid, (and acetic acid).TheoryIn context to the Ferric Chloride Test, the addition of ferric chloride to salicylic acid would produce a specific color caused by the reaction of salicylic acid with aqueous ferric (Fe(H2O)6 3) ion. ... Read More

A Lab Study: Oxidating Cyclohexanone to Adipic Acid (503 words, 3 pages)

ObjectiveThe objective of the lab was to oxidate cyclohexanone to adipic acid.TheoryAdding 10 NaOH solution to KMnO4 (which was in the solution with water and cyclohexanone) would be an exothermic reaction that would leave MnO4-. The mixture at this point would be warm at about 45 degrees Celsius, and should ... Read More

The Atomic Bombs of America (2199 words, 9 pages)

In the early days of August, 1945, the United States military unleashed the two most devastating weapons ever used in the history of mankind. Two atomic bombs were dropped on cities in Japan, killing hundreds of thousands of civilians and possibly ending the World War II. This taking of innocent ... Read More

An Introduction to the World of Non-Polar Hydrogen (432 words, 3 pages)

A World of Non-Polar Hydrogen Water's polar structure - that is, one atom (oxygen) has a weak,partial negative charge at one end of the molecule - allows it to formhydrogen bonds between different water particles (the atoms in one watermolecule are still covalently bonded), where the hydrogen of anothermolecule forms ... Read More

An Essay on Acid Rain on a Global Scale (1447 words, 7 pages)

Acid Rain On a Global Scale Acidic deposition, formally known as acid-rain, is a rapidly growingthreat not just in the United States, but around the globe as well. Acid-rain first became a prominent issue around the 1970's when forestssurrounding areas affected by the industrialization movement showed severesigns of deterioration. Most ... Read More

An Introduction to the Analysis of Acid-Base Titrations (2033 words, 8 pages)

Acid-Base TitrationsI. Introduction Acid-base titrations can be used to measure the concentration of anacid or base in solution, to calculate the formula (molar) mass of anunknown acid or base, and to determine the equilibrium constant of a weakacid (Ka) or of a weak base (Kb) . Titration is a method ... Read More

A Lab Exercise to Practise the Measuring and Analyzing the Acidity of Several Samples as Expressed by Titrable Acidity and pH (1457 words, 13 pages)

Points earnedPoints possibleIntroduction15Background 5Relevance 5Previously reported methods5Materials and Methods15Materials List 7.5Method description 7.5Results20Results presented18TablesFigures labeled 2Discussion30Results interpreted12Method evaluated12References10Format (JFS)5In text citation5Clean up10Total 100Extra Credit (pages stapled with Rubric)2Late turn in (-10 points per day, reports due at beginning of next lab)Lab 2 pH and Titratable AcidityIntroduction The purpose of this ... Read More

A Research on Triphenylmethanol and Benzoic Acid (1806 words, 4 pages)

Triphenylmethanol and Benzoic AcidThis experiment demonstrates the preparation of a Grignard reagent, or organomagnesium reagent. The reagent in which this was conducted is phenylmagnesium bromide. The reagent will be converted to a tertiary alcohol. It is also able to convert this reagent into a carboxylic acid depending on how the ... Read More

The Conversion of Benzaldehyde to Benzilic Acid (1270 words, 3 pages)

Multistep Reaction Sequences The Conversion of Benzaldehyde to Benzilic AcidThe experiment demonstrates the multistep synthesis of benzilic acid from benzaldehyde. This is performed through the conversion of bezaldehyde to benzoin under a thiamine-catalyzed reaction. This reaction is called the benzoin condensation reaction, and it demonstrates how a green reagent can ... Read More

Published: Friday 25th of January 2013