Catalytic Reaction Lab

Introduction: Chemical reactions are dependent upon two factors: temperature and concentrations of substance. We can monitor the rate at which a chemical decomposes or the rate at which a chemical substance appears. In this experiment we will be measuring the rate of decomposition of hydrogen dioxide with the following reaction:

I could learn how to identity Hydrogen, Oxygen, Carbon Dioxide, and hydrogen and oxygen mixture when they are present through this experiment. Before conducting this experiment, I should know the combustion chemical reaction first to predict right results. The most interesting thing was the experiment for gases of hydrogen and oxygen mixture. Through the reaction between hydrogen and oxygen, H2O is produced. H2O is water as we know. So I just expected that flame would blow out due to the water vapor. But it was wrong. The flame grew bigger with a pop and a flash.

However, because the deviation between the oxygen and ideal gas behaviors are very small in the experiment environment and thus can be ignored. So, the ideal gas equation PV=nRT can be used to determine the mole of oxygen generated. Equipment & Reagents Equipment: graduated flask, test tube, alcohol burner, pipette, rubber catheter, glass catheter, glass flume, iron support, dispensing spoon, match, balance, weighing paper. Reagents: KClO_3, MnO_2; (Potassium chlorate, Manganese

Higher levels of solution should produce higher levels of product. The independent variable for the control group data and the experiment data is the yeast concentration. The dependent variable for the control group data and the experiment data is how much oxygen is produced. The Constant for the control group data and the experiment data is time and amount of hydrogen peroxide. The products of the experiment will increase if the levels of reactants increase. Denatured yeast may cause change in the reaction of the experiment. For all trials of the control group, the concentration of yeast is 6ml. For the experiment data, the yeast concentration varies from 8mL, 10 mL, 12 mL, 14 mL, and 16 mL. The temperature may cause change in the reaction of the combination of yeast and hydrogen peroxide

The purpose of the lab was to determine the ratio of air to acetylene results in complete combustion of acetylene gas. The balanced chemical equation for this experiment was C2H2(g) + O2(g) --> CO2(g)+ H2O(l). Complete combustion is the reaction of an element or compound with oxygen to produce the most common oxides and energy. Complete combustion occurs when the fuel and oxygen combine in exact proportions to completely burn the fuel, which leaves a clean test tube. Incomplete combustion is the reaction of an element or compound with oxygen to produce some oxides with less oxygen than the most common oxides. Incomplete combustion occurs when there is not enough oxygen to react

From the experiments, the following have been found to signify a chemical reaction, color change, odor change, energy change, formation of a gas, and formation of a solid. In Experiment 3, observations noted a color change to bright yellow. Chemical reactions result in the formation of new substances with new properties, Experiment 3 had two compounds combined to produce two new compounds. Experiment 4 also had a color change, after the copper was held in the flame it turned a silvery blue. A solid compound formed after the combination of oxygen and copper, proving it to be a chemical reaction.

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

The purpose of this experiment is to understand how two different reactions can lose mass in a chemical reaction, and to learn how to arrive to the results in an organized way of recording data. The two balanced equations that we worked with were:

Title: Enzyme-Controlled Reactions Enzymes catalyse reactions by lowering the activation energy necessary for a reaction to occur. Enzymes are globular proteins that hasten chemical reactions. To catalyse means to speed things up by acting as a catalyst. A catalyst is a substance that increases the rate of a chemical reaction without undergoing a chemical change. The molecule that an enzyme acts on is called the substrate.

The solution had vigourous effervescence, and was white for the duration of the reaction before turning clear again.

Abstract In this experiment, microscale quantities of hydrogen and oxygen were generated to test their explosive nature both separately and in mixtures of various proportions in order to identify the mixture with the most explosive energy, via a pop test that measured relative loudness, thus determining the optimal ratio for their combustion reaction to give water, and determine a mole ratio for the reaction in a balanced equation. Each gas mixture was then tested for power as fuel through the launching of a micro mole rocket. The gases were produced via two separate generators which isolated a chemical reaction to either produce oxygen or hydrogen gas, the reactions included the single- replacement reaction reaction of zinc and hydrochloric acid to generate hydrogen gas, and the yeast catalyzed decomposition of hydrogen peroxide to generate oxygen gas

In order to acquire a complete or incombustion, the reactants have to acetylene and oxygen gas, but the water that was used to provide oxygen gas was not pure H2O, but was contaminated with other substances, but yet it was still utilized, therefore not pure oxygen formed which advances the error within the lab. A solution to this problem would be to utilize distilled water to have the production of pure oxygen gas to form. Distilled water is the purity of H2O, which in result, none of the inorganic materials will not be found within distilled water. (DrinkMoreWater, 2015) Thus if distilled water were to replaced the usage of tap water within the lab, it will ensure the production of pure oxygen gas will establish more precise results. Another feasible error is that the reactant experienced cross contamination within the wooden splint. Within the lab, one wooden splint was given and it was used multiple time in order to conduct the lab, but the underlying issue is that it could have contaminated the gas that was in a test tube, which was filled with acetylene gas. The wooden splint had already been burnt previously lighted up with a match, subsequently could of formed more or less soot, which could have

Results of Catalase Reactions Background: An enzyme is a protein that acts as a catalyst to start a reaction. Enzymes are able to break down large molecules into smaller molecules in order for it to be easily absorbed by the body. Not only can enzymes break molecules, but they can link two molecules together to create a whole, new molecule. A catalyst enzyme’s main function is to speed up the rate at which a reaction is going.

A chemical reaction is when substances (reactants) change into other substances (products). The five general types of chemical reactions are synthesis (also known as direct combination), decomposition, single replacement (also known as single displacement), double replacement (also known as double displacement), and combustion. In this lab, the five general types of chemical reactions were conducted and observations were taken before, during, and after the reaction. Then the reactants and observations were used to determine the products to form a balanced chemical equation. The purpose of this lab was to learn and answer the question: How can observations be used to determine the identity of substances produced in a chemical reaction?

In a practical sense, this is a useful way of converting the maximum possible amount of B into C and D; this is advantageous if, for example, B is a relatively expensive material whereas A is cheap and plentiful.