Chemical Reaction Lab Report 2013

Combustion Reaction: A chemical reaction between a fuel and an oxidizing agent that produces heat.

When calcium chloride, sodium bicarbonate, and phenol red are put into a bag and mixed up the type of reaction that occurs is a chemical reaction for the following reasons. Things that indicate that a chemical reaction has occurred are color change, formation of precipitate, formation of gas, and energy transfer in which three of them took place in the reaction of calcium chloride, sodium bicarbonate, and phenol red. The three indicators in this experiment were: a color change, formation of gas, and an energy transfer

The fossil fuels contain high percentage of carbon and include coal, oil, and natural gas, are the major source of energy that power our modern society. Fossil fuel range from low carbon to hydrogen ratio like methane, to liquid petroleum, to almost pure carbon like coal. Petroleum, such as natural gas and crude oil, contains a mix of hydrocarbons. Hydrocarbon deposits underneath the earth surface, such as oil and natural gas, is search by petroleum geologist and geophysics, called hydrocarbon exploration and oil exploration.

In a combustion reaction, a compound or element reacts with oxygen, releasing a large amount of energy in the form of light and heat.

What is the percentage yield of the reaction of iron and copper chloride when steel wool and copper chloride dehydrate are used as reactions?

Chemical, as well as physical reactions are key factors in the study of Biology. Reactions have many different forms including reaction times, products, reactants, etc. This laboratory experiment aimed to allow students to become familiar with oxidation reactions and enzymes. Enzymes are proteins that are used to enhance the rate of reaction. Without enzymes the reaction time will be a lot longer than that with the enzyme, therefore making the use of enzymes essential to students who are completing a laboratory experiment in a short period of time or even scientists/chemist/biologists also completing experiments.

Purpose: The purpose of this lab is to further observe four types of chemical reactions. This lab will show four types of distinct chemical reactions and will increase my knowledge on each type.

During this particular lab there were various chemical reactions that we had to observe and describe with much detail. In “Part One” of the lab we continued to mix various substances, and then noted descriptive characteristics such as smell and color. This particular portion of the lab was interesting because each mixture lead to a unique reaction. For example, after we mixed the substances “E” and “F” the final substance smelled similar to wood, but this did not occur in any of the other final solutions. Therefore, this part of the lab allowed us to experience a wide range of chemical reactions, which caused an assortment of changes. This aspect of the lab does need to be improved because it was an insightful experiment that forced each student

I was hired to be a new chemistry teacher at the Forest Grove High School. When I got

In 1937, Robert Hill isolated chloroplasts and demonstrated that chloroplasts can give off oxygen in the absence of CO2. The presence of an electron acceptor, 2,6-dichlorophenolindophenol, otherwise known as DCPIP, will turn from a blue color to clear when electrons have been accepted. This artificial electron acceptor intercepts electrons before those electrons reach PS I. Based upon this chemical feat, this will allow for the measurement the absorbance of 600nm wavelength of cuvettes containing free chloroplast reactions at various conditions, such as the effects of uncouplers (Ammonia), herbicides {3-(3,4-dichlorophenyl)-1,1-dimethylurea} (DCMU), light color, and distance from light. Using the isolated chloroplast, sodium chloride buffer, and the artificial electron acceptor, these manipulations will be carried out and the rate of the reaction measured using a spectrophotometer. The results expressed both the uncoupler and herbicide decrease reaction rate, 30 cm away from a 60 watt light bulb is prime for fast reaction rate, and green light demonstrated the fastest reaction rate.

Molar Mass of NaHCO3 = 84.098 g/mol Moles in 0.10g = 0.10/84.098 = 0.00119 mol Moles in 0.20g = 0.20/84.098 = 0.00238 mol Moles in 0.30g = 0.30/84.098 = 0.00357 mol Moles in 0.40g = 0.40/84.098 = 0.00476 mol Moles in 0.50g = 0.50/84.098 = 0.00595 mol Moles in 0.90g = 0.90/84.098 = 0.0107 mol Molar mass of CH3COOH = 60.052 g/mol Moles in 5g = 5/60.052 = 0.0833 mol Amount of grams in 5mL of CH3COOH = 5mL* 1g/1mL = 5g CH3COOH

Introduction Safety is a vital component that must be present in all science labs in order to ensure full success for the lab as a whole and to keep good health. When performing labs, it is essential to be habitual to science safety manuals that vary upon lab location. The manual for secondary school students of Simcoe Country District School Board addresses significant responsibilities for students when conducting labs. One of the expectations is for students to wash their hands after working with chemicals.

Fuel combustion is the process of where fuel is burnt that releases heat and light which is an exothermic reaction meaning it releases heat. The fuel is a hydrocarbon, which reacts with oxygen to release energy however a small amount of heat energy is needed to start fuel combustion. The products to the reaction are carbon dioxide and water.

The main thing in natural gas is methane. Millions of years ago, decaying remains of

Hydrocarbons are molecules made from only carbon and hydrogen. Carbon atoms are able to form long chains (concatenate) because they form very strong bonds with each other. With this in mind, we can utilise fossil-fuel derived hydrocarbons 4-12 carbon atoms long (commonly known as petroleum, or petrol) in combustion engines because when we combust (burn) these, all this energy is given out in a very rapid and highly exothermic reaction.