Chemistry Essays

Put the independent variable on the x-axis, put the dependent variable on the y- axis. 3. Label each axis with a quantity and a unit. 4. Give the graph a detailed title that includes the independent variable and the dependent variable. 5. Take a screen …

Results and Discussion Isopentyl propanoate was prepared by refluxing isopentyl alcohol in excess propanoic acid and concentrated sulfuric acid. The ester was obtained by distillation in 62% yield, bp 140-150oC (lit. 156 of [1]). GC analysis of the distillate revealed only traces of the starting …

Two general processes used to figure out the age of rocks is relative dating and radiometric dating. We will compare and contrast the strengths and weaknesses of both methods. According to Lutgens and Tarbuck, Relative dating is the process in putting events in their proper …

Experiment No. 9 INTEGRATED CONCEPTS OF EQUILIBRIUM RESULTS AND DISCUSSION A system in equilibrium can be affected by the addition of another reagent leading to a change in chemical equation with a new equilibrium constant. An overall reaction is the sum of two or more …

Gene Splicing Lab Question #1: DNA is made up of two separate strands of base sequences. The same sequence is found on both strands, but running in opposite directions. What word describes this characteristic? Palindrome Question #2: What does the term “sticky ends” refer to …

Crystal structure, optical and electrical characteristics of rutile TiO2- based photoanodes doped with GeO2 The effect of germanium dioxide GeO2 doping on dye-sensitized solar cells (DSSCs) TiO2 nanocrystallites photoanodes with different concentrations with composition (TiO2-(GeO2)x: 0 * x  0.3 wt%) has been studied. The samples …

Rapid prototyping 3D printers 3D printing is a form of additive manufacturing technology where a three dimensional object is created by laying down successive layers of material. 3D printers are generally faster, more affordable and easier to use than other additive manufacturing technologies. 3D printers offer product developers the ability …

Lead Acid Cell vs. Button Cell Lead acid cells were invented in 1859 by the French Physicist Gaston Plante, and are the oldest types of rechargeable batteries. These types of batteries typically weigh at 5kg, but can range from half a kilogram to over 30 …

The energy situation of the United States is currently worse, an unimaginable situation for the country. This is because of the increasingly large demand for these resources in the daily lives of Americans. As the country reaches its peaks in development and technology, it is …

Glass Ionomer Cements (GIC) is created when ion-leachable calcium alumino-silicate glass powder that contains fluoride reacts with polyalkenoic acid. Recently, the use of GIC has been extensive in dentistry as it can be modified by combining it with several substances and the properties can be …

The predicted clime ensuing from a Nuclear War is termed Nuclear Winter. Scientists predict the explosion of atomic armories would ensue in colder conditions and decreased sunshine on Earth for old ages. This posting will be limited to explicating the general effects of a Nuclear …

Carbon monoxide direction has progressively received attention in recent times, due to issues originating from the clime alteration phenomenon, and the increasing rate of wellness and environmental jobs originating from air pollution. The promotions in air quality and C monoxide direction techniques are borne out …

Nanoscience includes the survey and creative activity of stuffs, devices, and systems by pull stringsing single atoms and molecules. It describes research where the characteristic dimension of 1 or more planes is less than 100 nanometres i.e. , 0.1 micrometers. As we know that all …

Introduction: The ion-selective electrode used was made up of a silver/silver chloride reference electrode and a glass electrode. The pH of the electrochemical cell is determined by monitoring the electrical potential difference between the half-cells. The glass electrode is an ion-selective electrode (ISE), which only …

Water is one of the chief beginnings in the Earth. It is a really of import resource for people and the environment. Our blood consists of H2O and we can non populate without H2O. We need H2O in our life daily because it is a …

Have you ever said “I wish money could grow on trees? ” Well that could actually be true! Geoscientist Melvyn Lintern was the author of “Gold Particles Found in Leaves of Eucalyptus Trees. ” This article was published in Science News magazine on October 23, …

Design Experiment: Enzyme Inhibitors. Research question: What is the effect of adding lead nitrate solution on the activity of amylase enzyme? Aim: To test the effect of adding nitrate solution on the activity of amylase. Background Information: Inhibitors are molecules which repress or prevent another …

Amber-preserved fossils are organisms that become trapped in tree resin that hardens into amber after the tree gets buried underground A4. Preserved remains form when an entire organism becomes encased in material such as ice or volcanic ash or immersed in bogs. Most fossils form …

Introduction It is the procedure by which electricity drives all highly little mechanical devices. It consists of both electrical and mechanical constituents. Components are in the scope of 1 to 100 microns in size and due to its big surface to volume ratio electrostatics and …

Pyrite is a very interesting mineral for many reasons. The name Pyrite comes from the Greek word “pyr” which means “fire,” and was named because it was found that sparks would fly from it if struck against another minerals like steel. In early times, this sparking ability …

As industry developed and increased, as did the need for reliable and efficient fuels to power the new machinery developed. It did not take long before fossil fuels were discovered, with their innate ability to provide high amounts of energy at seemingly low costs. Fossil …

The respiration system is important to all animals, this system interacts others system in our body to provide energy and maintain life. Animals inbreathe oxygen, the body though metabolic process to produce ATP (energy source) and carbon dioxide, finally, carbon dioxide would be exhaled to …

A1. Role of Enzymes in Processes Enzymes are organic catalysts that help to speed up the breakdown of a molecule, such as fructose. The enzyme helps a chemical reaction take place quickly so that the reaction happens properly. In order for that to happen the …

Bacteria, zebras, mosquitoes, anacondas, essentially all living things have one thing in common which makes them what they are. It is DNA. It is one of the greatest biological discoveries in the history of mankind. It is not only related to biology but is tied …

The environment around us consists of many different topics and issues. One little change in our environment is enough to determine the course of mankind. The world can only be preserved when we take action to study and save it. Studying the cycles of the …

You were to analyze a variety of tests including analyzing a glucose solution for the presence of simple reducing sugars, analyzing a sample of vegetable oil for the presence of lipids, analyzing a ample of gelatin for the presence of protein, and analyzing an unknown …

Metals are electropositive chemical elements that are characterised by the following qualities: ductility, malleability, luster, opacity, and conductance of heat and electricity. They can replace the hydrogen of an acid and form bases with hydroxyl radicals. Density is defined as a material’s mass divided by …

Rain is very important for life. All living things need water to live, even people. Rain brings us the water we need. But in many places in the world even where you live, rain has become a menace. Because of pollution in the air, acid …

Pollution is the beginning of a waste into the ambiance doing it impossible to do life on Earth possible to prolong. Pollution is the debut of a contamination into the environment. It is created largely by human actions, but can besides be a consequence of …

ATOMIC WEIGHT OF MAGNESIUM LAB Introduction The main purpose of this experimental lab is to determine the atomic weight of magnesium, as well as an underlying purpose in determining the relationship between moles evolved and consumed. This can be demonstrated by measuring the hydrogen gas …