Chemical reaction

catalysts to reduce the activation energy required for a chemical reaction. By lowering the activation energy, enzymes speed up the chemical reaction by providing an alternative action pathway (“Enzymes”). Enzymes are required in minute amounts because they remain unchanged after a reaction has occurred, so the same enzyme molecules can be reused over and over again. Since enzymes are proteins, they have active sites that speed up the reaction and are therefore highly specific in their action.…

Determining the Chemical Formula of a Hydrate PROCEDURE Experiment required: copper (II) sulfate hydrate, 2 crucibles, electronic mass balance, bunsen burner, iron ring, crucible tong, clay triangle, wire gauze, retort stand, 1. Individuals should wear goggles on and tied hair back before the experiment started. 2. The mass of an empty crucible cover was measured. 3. Approximately 2.00g of copper (II) sulfate hydrate samples was taken out and put into the crucible. 4. The mass of the crucible…

antimicrobial properties, but it 's not yet confirmed. The chemical formula for Lauric acid is C12H24O2 and has a molar mass of 200.32. Its melting point is about 3.8°C while the boiling point is BOUT91.4°C (lauric acid,…

Discussion Enzymes are biological catalysts that help speed chemical reactions. In part A (table 2), it was seen that a normal reaction of catalase and hydrogen peroxide resulted in the release of bubbles (oxygen gas) and the release of energy in the form of heat which shows that the reaction was a exothermic reaction. The reaction was given a reaction rate of four and acted as the control with which we could compare the other results to. When testing whether or not catalase is reusable in part…

catalysts that carry out thousands of chemical reactions that occur in living cells. A catalyst speeds up a chemical reaction by changing the rate of the reaction without being consumed by the reaction. In an enzyme - catalyzed reaction the substance acted upon that is called substrate binds to the active site of the enzyme. An enzyme-substrate complex is formed held by hydrophobic interactions, hydrogen bonds and ionic bonds. The substrate is converted to reaction products by catalytic action…

(II) sulfate a reaction will occur, resulting in a precipitation. The prediction about the copper (II) sulfate and copper is that nothing will happen. Hypothesis It is hypothesised that when zinc is placed in aqueous copper (II) sulfate, a single displacement reaction will occur as the zinc is in its elementary form. Because it has a higher reactivity, it will probably displace the copper from copper (II) sulfate and a precipitation will be present. It is hypothesised that no reaction will…

ABSTRACT Within this experiment, the use of a bomb calorimeter was required in order to determine the heat capacity of the system through the combustion of three separate trials of benzoic acid. The resulting heat capacity values for each trial were averaged, with a standard deviation found as well. This was then used to work backwards, for a naphthalene trial, in order to calculate the change in energy (∆U) and the change of enthalpy (∆H). The accepted value for the change in enthalpy of…

then isolated and the regiochemistry is analyzed using chemical tests and known standards (1 Br, 2 Br) in order to determine if Markovnikov’s rule is followed. In general, Alkenes are able to undergo addition reactions due to the strength of their C-C -bond (60-65 kcal/mol) which is lower than the strength of a typical -bond (80-100 kcal/mol) between Carbon and other atoms. Adding a reagent across the double bond results in an exothermic reaction because one -bond is replaced by two higher…

DISCUSSION There are three chemical properties will be discussed which are combustion, reaction with bromine and reaction with potassium permanganate. Combustion was used to test the unsaturation of hydrocarbon. The degree of unsaturation refers to the number of the rings and / or multiple bonds present in the hydrocarbon molecule (McMurry, 2015). Hexane was a saturated hydrocarbon, it completely combusted and emitted carbon dioxide plus water. Cyclohexene was an unsaturated hydrocarbon, it…

water. During chemical dehydration covalent sigma bonds are broken into a hydroxyl group and a covalent sigma bond is broken to a hydrogen on an adjacent atom. A covalent pi bond forms between the two atoms on which the OH and H are bound and therefore chemical dehydration forms a new water molecule along with a new double bond. In this experiment 2-methycyclohexanol will react with phosphoric acid, the phosphoric acid will act as a catalyze. Drierite will be added to the reaction flask to…