Copper sulphate

number that zinc contains and therefore that is why zinc is placed in that order in the periodic table Similarities and differences between the compound ‘Zinc Sulphate’ and the element ‘Zinc’ Similarities and differences between the compound ‘Zinc Sulphate’ and

12. The crocodile clips are attached to the copper electrodes of the experimental apparatus and the power supply is turned on. Simultaneously, the stopclock is started. The thermometer is checked every 30s. 13. After 300s the stopclock is stopped and the power supply is turned off. The negative cathode

629nm; food dye green = 629 & 426nm. Discussion: Part A: The warm water was added to the dehydrated mixture of table salt, sand and the copper sulphate. The solution changed to a visibly blue homogenous colour. The sand and some of the copper crystals that did not dissolve remained at the bottom of the beaker. A small amount of copper sulphate residue was left in the collection funnel. The temperature of the solution was too high for the mixture to bind and recrystallize; Ethanol was added

Observing Double Displacement Reactions Purpose: The purpose of the lab is to determine and observe the different double displacement reactions that occur when certain reactants are mixed. Double displacement reactions will be classified with the use of indicators. Introduction: Chemical reactions occur very often in people’s everyday lives. There are six main types of reaction. These include decomposition reactions, synthesis reactions, single-displacement reactions, double displacement reactions

increase in part B, one can see that the results that were obtained during the experiment were outliers of each other. Looking back at the table from part B when the 80% concentration of catalase was placed into the 3% Hydrogen Peroxide + 10% Copper II Sulphate the results of time it took for the filter disk to reach the top seemed to be unreasonable. In trial 1 and 2 the time that was recorded

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

Macromolecules BCM 261 10/13/2014 Caroline Venter 13019865 Introduction Background Many of the molecules that are crucial in living organisms and systems are very large and are usually made up of macromolecules. Macromolecules are organic molecules with a large molecular mass and consist of repeating units called monomers. These repeating monomers are formed via condensation or dehydration

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 results you must ensure

(oxidation-reduction) occurred. Copper metal reacted withnitric acid to produce copper (II) nitrate. It also created nitrogen dioxide, and water (which isdecomposed from nitric acid). In reaction B, a double displacement reaction occurred forthe reasons that when copper (II) nitrate reacts with sodium hydroxide, copper and sodiumdisplace each other to create copper (II) hydroxide and sodium nitrate. In Reaction C, adecomposition reaction proceeded for the reasons that when heat was added to copper (II)hydroxide,

The Dunedin Public Art Gallery is currently showcasing the ‘Private Utopia’ exhibition. It holds 85 works by 25 artists of Contemporary Art from the British Council Collection. The exhibition displays artistic production from the last two decades, by artists who came to prominence in the mid-1990s and also emerging artists of the present. Such as Sarah Lucas, Cornelia Parker, Marcus Coates, Laura Lancaster, Tracey Emin, Roger Hiorns and many more. These artists contribute to the five threads that