Chemical Reactions Lab Essay

Stoichiometry Abstract: The purpose of the Copper/Iron Stoichiometry lab was to determine which of the two possible iron sulfate compounds formed when reacting aqueous copper(II)sulfate with solid iron metal. The techniques used in this lab were weighing by difference, quantitative transfer, and vacuum filtration. At the end of the experiment it was found that iron was the limiting reactant and iron(II)sulfate was a product of the reaction between 7.0002g of copper(II)sulfate and 2.0101g iron…

Formal Lab Report: Molar Volume of a Gas at STP Abstract: The purpose of this experiment is to find out how to experimentally determine what the volume of a mole of H₂(g) is at STP by using gas laws. The hypothesis for the experiment is that if H₂(g) is produced at RT and STP, Avogadro’s law can be used to experimentally determine the amount of H₂(g) because equal gases at the same pressure and temperature have the same amount of particles. In order to find the molar volume, hydrogen gas…

Chemistry and the Diels-Alder Reaction Purpose The purpose of this reaction is to bring about the movement of green chemistry which is a safer, more sustainable chemistry to all levels of chemistry. The use of 12 principles can make in principle a reaction greener with the use of modifications. In this lab, the Diels-Alder reaction will be performed by reacting (E,E)-2,4-hexadien-1-ol with maleic anhydride without the use of a solvent to make the reaction more greener. The reaction will be…

Almost all chemical reactions involve a loss or gain of heat. This change in heat is called enthalpy. The goal of this experiment is to calculate enthalpy for three different reactions. To calculate the enthalpy of a reaction, a calorimeter is used to measure the change in heat energy from mixing different substances. The change of temperature is found by comparing the change in temperature of the system to the temperature of the surroundings. For a calorimeter, a Styrofoam cup place in a beaker…

Chemistry Lab Report NAME: Serina Alashi DATE: TITLE: Decomposition reaction: hydrogen peroxide (H2O2) decomposed into hydrogen and oxygen ( H2 and O2) RESEARCH QUESTION: How will changing the concentration of hydrogen peroxide affect the rate of reaction, that is represented by the increase in pressure over time? Introduction: Hydrogen peroxide is a chemical compound of hydrogen and oxygen. It is a very strong oxidant but weak in water solution. Hydrogen peroxide decomposes into water…

Frame: The purpose of this lab is to determine if the iron given in the experiment is Fe (II) or Fe (III). Knowing what chemicals are present in a reaction and what chemicals are produced is significant information that can be applied to real world situations. An example of this is rust. Rust usually occurs when iron reacts with water. By being aware of this, substances can be made to remove unwanted rust. The mass of the collected samples will decrease as it is dried due to evaporation. Excess…

The experiment outlined by this lab report demonstrated the idea of synthesizing tert-butyl chloride through an SN1 reaction. The SN1 reaction took place with a polar protic solvent taking the place of the leaving group (alcohol) and creating a new replacement bond with the carbocation to form a tertiary chloride structure. The product was then tested for this structure by reacting it with two substances: sodium iodide and silver nitrate. These tests were to demonstrate that if the product…

The purpose of the lab was to find which of the three balanced chemical equations was correct using decomposition & stoichiometry. After getting the necessary supplies for the lab, get the crucible and weigh it on the scale. After that, reset the scale so that it shows all zeros. Then put a certain amount (10,00 g), set up the ring stand and bunsen burner, so you can heat the crucible and baking soda effectively. The lab procedure and data supports the hypothesis, that if baking soda is heated,…

Pack A chemical change is to alter the identity of a substance. Properties of these chemical changes include color change, gas formation, temperature change, precipitate formation, odor, and change in acidity. In the hot and cold pack experiment we found it to be a chemical reaction An exothermic reaction is when the substance releases heat energy. An endothermic reaction is when the substance absorbs heat energy. In our experiment we created a cold pack. We indicated that the reaction for…

Fashina Student Number: 13335535 Lab Partner’s Name: Ifeoma Agu Demonstrator: Maria Inorganic Chemistry Experiment 3: The Identification of Unknown Samples Objectives The experiments were carried out in order to identify 15 samples, through their physical and chemical properties. Theory A precipitation reaction is one which produces an insoluble salt as product. An example would be; Ca(NO3)2 + H2SO4 = CaSO4 + 2HNO3 The calcium salt is insoluble. Precipitation reactions could be used in this…