Chemistry

The effect of temperature on the rate of reaction on Enzyme reaction Introduction: This experiment will investigate the effect of temperature on the rate of reaction of the enzyme catalase. The biological catalyst called enzymes increase the rate of reaction without themselves being chemically changed. Enzymes are globular proteins folded into a complex 3-dimensional shape that contains a special surface area called the active site where a specific substrate binds structurally and chemically.…

The Calorimetric Determination of Enthalpy and Entropy Changes of the Thermal Decomposition of Sodium Sulphate Decahydrate Abstract Sodium sulphate decahydrate thermally decomposes to anhydrous sodium sulphate at 50⁰ C and cools to form anhydrous sodium sulphate. Using Hess's Law the enthalpy and entropy changes of this process can be determined in order to deduce the spontaneity of the reaction. The transition temperature was determined by melting the hydrated crystals at 50⁰ C and allowing…

PHYSICAL PROPERTIES: It has two isomeric forms 1, 2, 3-triazole and 1,2,4-triazol with common molecular formula C2H3N3,and both have 69.06 molecular weight. [2]] 1, 2, 4-triazole derivatives simply exist in solid forms. 3, 4, 5-substituted 1, 2, 4-triazole derivatives melts on thermolysis when heated at high temperature3160C for half an hour. 1, 2, 4-Triazole derivatives are easily soluble in polar solvents and slightly soluble in non-polar solvents. However the solubility in non-polar solvents…

CHEMISTRY ASSIGNMENT STUDENT NAME : SYED HAMMAD AHMED CLASS : F.E MECHANICAL ENGINEERING SECTION C TEACHER'S NAME : MISS HIRA SULTAN DATE : Table of Contents Serial No. Topics Page No. 1 Corrosion 3 2 Electrochemical Theory of Corrosion 3 3 Types of Electrochemical Theory of Corrosion 4  Oxygen Absorption 4  Hydrogen Evolution 5  Galvanic Corrosion 6-7  Concentration Cell Corrosion 8-10 4 References 10 Corrosion Corrosion is the…

Title: What was the effect of different types of salt on height of ice cream formation? Purpose The purpose of this experiment was to find out if there was any correlation between different types of salt and the final height of ice cream formations. Background Information Milk is made up of triglycerides (mainly milkfat) dispersed throughout water as an oil-in-water emulsion, or dispersion of globules of one liquid into another. When agitated, the emulsion begins to break down, or coalesce…

The goal of this experiment was to use chemistry to analyze an unknown compound and through testing its physical and chemical properties determine what unknown compound that was found in a landfill. This would benefit the Environmental Protection Agency because once they know what the substance was they could determine the best way to remove it from the landfill and if there were any potential safety hazards to beware of while handling the substance. This would prevent any accidents that may…

Spectrochim. Acta. A6 (2008) 8. [26] N. Mondal, D.K. Dey, S. Mitra, K.M.A. Malik, Polyhedron 19 (2000) 2707. [27] S. Bilge, Z. Kilic, Z.H. Ali, T. Horkelek, S. Safran, J. Chem. Sci. 21 (2009) 989. [28] F.A. Cotton, G.Wilkinson, "Advanced Inorganic Chemistry", 4th Ed., Wiley, New York, (1980). [29] M. Sonmez, M. Celebi, I. Berber, Eur. J. Med. Chem. 45 (2010) 19351940. [30] W. Geary, J. Chem. Rev. 7 (1971) 81. [31] E. Tas, M. Aslanoglu, A. Kilic, O. Kaplan, H. Temel, J. Chem. Res. 4 (2006)…

stannic oxide in the older notation, is the inorganic compound with the formula SnO2. The mineral form of SnO2 is called cassiterite, and this is the main ore of tin. With many other names, this oxide of tin is the most important raw material in tin chemistry. This colorless, diamagnetic solid is amphoteric. 1.2 Structure It crystallises with the rutile structure, wherein the tin atoms are six coordinate and the oxygen atoms three coordinate. SnO2 is usually regarded as an oxygen-deficient…

Identifying an Unknown Compound Using Various Chemical Analysis Techniques Joshua Nash and Aquilla Young Abstract The introduction of this lab report exposes the reader to the different scientific concepts that are to be used such as melting point calculations, retention factors, and solubility in various aqueous solutions. The experimental provides the basics of using a melting point apparatus, determining solubility, and performing thin layer chromatography. In the results section the findings…

Purpose of this lab is to find out how rate of reactions are affected by volume affects and determine which chemical affects the solution rate of reaction. Temperature was also a factor in discovering how it will affect the speed of the reaction. This was done by gathering certain chemicals and mixing them into a test tube then recording how long it took to change color. Temperature was tested by placing the test tube in ice water over a hot plate and slowlying increasing the temperature. Sodium…