Chemical Reaction Reports Samples For Students

Vitamin C Clock Reaction: Kinetics

Vitamin C Clock Reaction: Kinetics

Abstract

Collision theory refers to a theory that was proposed by Max Trautz and William Lewis independently. The theory qualitatively offers an explanation on the way chemical reactions take place and the reason behind differences in reaction rates in different reactions. The rate equation for a given chemical reaction refers to the equation that provides a link between the pressure or concentrations of the reactants and the parameters that are constant partial reaction orders and the rate coefficients. This experiment aimed to determine the rate of reaction of reaction between iodide and hydrogen peroxide and determine the order ...

Abstract

Amylase from Bacillus Subtilis and Aspergillus oryzae were studied as representative candidates for bacterial and fungal enzymes, respectively. The activities of these two enzymes were studies comparatively over a period of 10 minutes and at temperatures of 0, 40, 60 and 95°C. The experiment was conducted to find the most effective temperatures for bacterial amylase and fungal amylase to catalyze starch hydrolysis. The data suggest that fungal enzyme was relatively more active, particularly in the first 6 minutes, than the bacterial counterpart at 0°C.
On the other hand, the fungal enzyme activity deteriorated more rapidly than that ...

Summary: Examination of a biotechnology patent
Theoretically, thermal cycling refers to a process of temperature regulation scheme that is used to strengthen variety of materials or lengthen their durability. Thermal cycling apparatus and method refers to the equipment and technique used to carry out thermo cycling processes. Improved thermal cycling apparatus and relates to the modern advanced inventions of equipments and methods of carrying thermoregulation processes and minimizing related movement of fluids from two zones with two different temperatures to control chemical reactions.
Background of the invention
Temperature is one of the main factors that have been found ...

How is Plant Growth Affected by Sunlight?

Introduction
Background information
Sunlight is essential to plants. Plants in dark room tend to grow towards sunlight. When they lack sunlight, photosynthesis does not take place causing them to wither and die.
Photosynthesis takes place in the leaves of a plant. In plant leaves, there are organelles called chloroplast. They form site for photosynthesis process. They are very many in a leaf.

Within chloroplast, there is chlorophyll, that are usually green in color, hence the green coloration in plants.

Plants require air, water and sunlight for photosynthesis to occur. Air goes inside the leaf via stomata, water is absorbed from the ground through the roots and sunlight is absorbed by the chloroplasts in the leaves.
Chemical ...

Introduction

Coordination complex usually consists of a metallic coordination center and can be surrounded by bound molecules. Thus these are known these coordination complexes are known as ligands as they bind several molecules strongly almost irreversibly. Coordination complexes therefore coordinate covalent bonds on the molecule.
There is specific nomenclature for coordination complexes. Particularly, the donor atom is the ligand that is bonded to the central atom. Here we are making Aluminium acetylacetonate, Al(acac)3, also referred to as Al(acac)3, and the metal ion is the aluminum and the donor atoms are the acetylacetonate. If there are more ...

Introduction

Reduction reactions are very important in chemistry as they are effective processes for synthesizing new compounds from existing ones. In organic chemistry, a compound is said to be reduced if it acquires new hydrogen. There are diverse reagents for carrying our reduction reactions. Two of these are sodium borohydride (NaBH4) and lithium aluminum hydride (LiAlH4) - the latter is a more powerful reducing agent compared to the former.
In this experiment, NaBH4 was used to reduce p-Nitrobenzaldehyde to form p-Nitrobenzyl alcohol. NaBH4was used over LiAlH4 in this experiment, because LiAlH4 would also reduce the nitro group of the aldehyde.

Experimental:

...

Abstract

In this experiment, benzene was treated with hydrogen in the presence of Pt/SiO2 as an example that can be applied on industrial operations to show that the most recently modernized methods of neutron total scattering that cover a wide Q-range allow the use of appropriate catalytic chemistry that can be measured on time domain to probe directly on site the hydrogenation of benzene within the catalyst pore. Based on this method, it is possible to study the rates of reaction on length scales that can provide measurements equivalent to the size of an atom or a nanometre. Furthermore, the ...

Introduction

In a chemical reaction, either the products or reactants tend to have a higher enthalpy than the other. In some cases, the enthalpy of reactants is greater than the enthalpy of products. On the other hand, in other cases, the enthalpy of products tends to be greater than the enthalpy of reactants. A reaction involving the products with higher enthalpy than the reactants is said to be endothermic (Brown, et al, 172). On the other hand, chemical reactions where the enthalpy of reactants is higher than the enthalpy of products are said to be exothermic (Brown, et al, 172). The reaction ...

Abstract

The purpose of this experiment was to characterize aldehydes and ketones using Tollen’s test and Iodoform test. It also aims to identify an unknown substance as well as determine whether glucose is an aldehyde or a ketone using the same tests. In order to achive these purposes, four test tubes where prepared for each type of test. For Tollen’s test, each of the tubes contained 1 drop of the analyte to which 1mL of the Tollen’s reagent was added. For the Idoform test, 4 drops of each substance was used, to which 2 mL of sodium hydroxide ( ...

Abstract

Enzymes are biological catalysts and work by speeding up the rate of chemical reactions. The factors that affect enzyme activity include enzyme concentration, temperature, pH, and the substrate concentration. This experiment aimed to determine the effect of lemon juice, which is acidic on the activity of catechol oxidase enzyme. According to the results, high acidity inactivates the catechol oxidase enzyme. The optimum pH level for catechol oxidase enzyme can, therefore, be said to be pH 6.

Introduction

Enzymes are biological catalysts and work by speeding up the rate of chemical reactions. The enzymes achieve this by reducing the amount of ...

Introduction

The cardiovascular system consists of arteries, capillaries veins blood vessels and the heart. The heart delivers nutrients and oxygen to the tissues and caries waste products for elimination from the tissues (Hester & Lusha, 2012). The regulation of the cardiovascular system occurs through a complex interaction of both neural and non-neural mechanisms that aim at guaranteeing a constant internal environment (homeostasis) in organisms (Malliani 2000). The regulation of the cardiovascular system occurs through hemodynamics, through auto regulation, hormonal regulation and neural control (Khurana, 2008).
The most important of the regulatory mechanisms are closed loop reflexes like baro- reflexes, chemo reflexes and ...