Sulphate

Determining the Molecular Formula of a Hydrated Copper (II) Sulfate Through the Concept of Moles Introduction In this experiment, the mass percentage of water, and the molecular formula, of a hydrated copper (II) sulfate will be calculated through an understanding of hydrates, percent composition, and moles. A hydrated compound, is a compound that absorbs water molecules from the surrounding environment.1 The water molecules attach to the compound, but do not form a chemical bond. Water molecules

accurate measurement of 5ml sodium carbonate once again labelling appropriately. • Then in the last test tube fill it up with 5ml of sodium sulphate. Then after that carefully pour the sodium carbonate solution into the test tube labelled copper chloride solution examining the result and recording appropriately. • Next you need to carefully pour the sodium sulphate solution into the second test tube containing copper chloride again making a note of the reaction that takes place. In order to get accurate

The catalytic effect of D-block ions and the kinetics of reactions iodine clock reaction: By Stephen Parsons 6K2 Centre number: 61813 Candidate number: 8270 Table of Contents My aim and my reaction: 3 Rate of reaction: 4 Activation enthalpy: 5 Collision theory: 6 The effect of temperature on reaction rate: 7 The effect of concentration on reaction rate: 7 The effect of a catalyst on reaction rate: 8 D-block elements: 9 The effect of extra kinetic energy (from stirring etc.): 10 Where

BUILDING DEFECTS PART 1 • Identify common building defects • Identify the source • Provide pictures, diagrams and sketches • Suggest remedial action • Show details that would have avoided the defect PART 2 Generate a scheme for planned maintenance and provide a building checklist to ensure all necessary maintenance is carried out on a regular basis. INTRODUCTION In this project we will be looking at many different kinds of building defects that would be commonly seen in the construction

1. INTRODUCTION The world as we know it, is continuously evolving. With an increase in population, there exists a great deal of economic and social needs. The earth is enriched with a vast of diverse precious minerals which play a significant role in our lives. These minerals are used in many sectors such as medicine, construction, agriculture etc. To extract these precious minerals from the earth’s crust, extensive mining operations are carried out daily. These operations comprise drilling and

copper sulphate, the temperature increased by 4 degrees making it into 25 degrees. As the steel wool was pressed to the surface, there was physical changes to the wool. The wool turned into pinkish purple. The copper sulphate solution turned from having a light blue colour to the surface turning into a greenish colour. The reason for this is because the iron is more reactive and stable than copper. So when going through the reaction, it releases heat making the final products as iron sulphate and copper

carbonate and magnesium chloride by precipitation. Equipment: • 6 small test tubes • distilled water • measuring cylinder • 3 unknown ionic salts (No.7, 8, 9) • rack • silver nitrate • sodium hydroxide • calcium nitrate • sodium chloride • copper sulphates Method: 1. Pick three unknown ionic salts (NO. 7, 8 and 9) 2. Use the measuring cylinder to get 1.5ml water and pour it into a test tube 3. Use a spatula to remove 3 scoops of the ionic salts powder into the test tube and dissolve them in 1.5 ml

therefore creating no products. Lastly, increasing the concentration of heavy metal ions, such as copper (II) Sulphate and lead (II) nitrate, will decrease the rate of the reaction as it will disrupt the bonds between the amino acids of the proteins denaturing the enzyme structure and function. It was learned that if distilled water is used without the concentrations of copper(II) Sulphate and lead (II) nitrate the rate of the reaction decreased as the heavy metal salts decreased. As a result of more

concentrations of BOD5, COD, DO, Color, Turbidity, TDS and TSS exceeding the permissible limits is present throughout the study portion of the river. In addition, it highlighted the portions where only few parameters such as PH, Chloride, Nitrate and Sulphate are deteriorating the riverine ecosystem. The GIS application in pollutant load assessment of the study further indicates that although few pollutants, discharged into river are relatively low in concentrations at one wastewater outfall point as

Introduction: Calcined gypsum (calcium sulphate hemihydrate, CaS04 -1/2H20), often known as plaster of Paris, is used extensively in the production casts to immobilize parts of the body and for making moulds used in the make of orthotic and prosthetic devices. Plaster models and casts have several advantages, and a few disadvantages. Everywhere available, plaster is inert, adequately stable dimensionally, for the use at hand, and it is low price. Its key disadvantage involves the time required for