Chemical synthesis

Recent studies have shown that direct physical contact of the human body with the surface of the earth (grounding or earthing) produces profound quantifiable physiological effects. A reasonable hypothesis to explain the benefits is that a direct connection to the earth and the human body allows the abundance of free electrons to flow from the ground to the body. It is proposed that because there is sufficient evidence to suggest that earthing has positive effects on physical health, the influx…

and Hydrochloric Acid Lab, we concluded that the chemical reaction that occurred was exothermic and a single displacement reaction. The experiment consisted of zinc (Zn) and hydrochloric acid (HCl) being mixed in a test tube immersed in water. First of all, bubbles were produced during the reaction. Also, a white powdery substance was produced with properties different from those of any reactant. The bubbles suggest that the reaction was a chemical reaction as bubbles indicate a formation of…

Introduction Quartz is one of the most plentiful minerals on earth, and it is found in various igneous, metamorphic and sedimentary rocks. Clear Quartz is composed of pure silicon dioxide, and has nearly smooth sides with naturally faceted points at one or both ends. Clear Quartz is also known by the name Ice Crystal, which was derived from the Greek word “krystallos,” which means “icy cold.” (1) Greek philosopher’s believed that this crystal was water frozen so hard that it could never thaw.…

The objective for this lab is to construct a solubility curve for potassium nitrate in water by measuring saturation temperatures for six different solution concentrations. We form a group of four and were assigned to work on series one while the other group work on series two. Throughout the lab, we set a hot bath water temperature at 85 degree celsius which affected how potassium nitrate dissolves in water and changed the saturation temperature. In addition, our group discovered that the mass…

The rate of reaction in an enzyme catalysed reaction is also affected by the presence of inhibitors. In this experiment, the effect of temperature on reaction rate of enzyme will be studied. Peroxidase will be used as test enzyme and the variable to be studied is temperature (°C). At first, the experiment will be carried out at room temperature of 20°C. The temperature of the experimental setup will then be increased by keeping the reactants in a water bath at a temperature of 50°C. The enzyme…

David Jacobs 9F Mrs Pienaar Supercooling Water Introduction Supercooling is relevant as it can help us increase the amount of time we can keep an organ outside a body before it is transplanted, Investigative Question How long do different types of water take to freeze. Hypothesis Tap water will start to freeze as the water reaches just below zero degrees Celsius. Distilled water will last for…

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Purpose: The purpose of this lab is to prove and discern the empirical formula of copper oxide using the Law of Conservation of Mass. This states that in measuring the mass of each component of copper oxide and determining the percent composition of each the copper and the oxygen within copper oxide it is possible to find the ratio of the elements within the compound. Procedure: In order to conduct this lab, 25.1mL of distilled water then 25.5mL of 3M HCl must be added 2.11g of copper oxide.…

Analysis Experiment #1 (Solid) a). My hypothesis was incorrect because I thought the fire going around the brass ball would make it smaller and when the ball through the hoop it would fit easily. I was wrong because the heat made the particles expand which lead to making the brass ball bigger. My second hypothesis was correct; I had thought the water would make the ball smaller and therefore fit through the hoop easier. The water cooled down the ball making the particles contract. When we…

Kinetic and potential energy play an essential role in the segments or phases in a heating or cooling graph representing an exothermic or endothermic process. Kinetic energy is the energy of a system that is in motion of the particles in the system. Potential energy is the energy of a system in which it represents the arrangement of the particles of the system. Kinetic energy and potential energy never increase or decrease at the same time, however, when one energy is changing the other remains…