Example Lab Report and structure Monash Uni ------------------------------------------------- The lab report The laboratory report is an important form of writing for scientists as it provides a record of experiments completed. Depending on the type of task or investigation you carry out‚ the sections of the written piece may vary‚ but a lab report or project report will usually have a title page‚ abstract‚ introduction and methods‚ results‚ discussion sections‚ a conclusion and references test
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We live in a society where there is a lot of pressure to be perfect. We feel like we need to look like the models in the magazines. Because nowadays‚ it’s all about the looks‚ the style and the weight‚ nothing else matters. The actual definition of perfection is ‘being entirely without fault or defect ‘. Can anybody actually think of anyone who has no fault? Whether its weight or something silly like a limp or a allergy‚ everyone has one. And when we have a small fault like this‚ we feel like
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to see how the change in concentration of hydrogen peroxide and the change in temperature affect the rate of reaction. The data will be collected by measuring the gas pressure. The product of Hydrogen Peroxide is oxygen in a gas state thus it is mandatory to use the gas pressure sensor. By calculating the difference of the gas pressure divided by the amount of time from the raw data collection it is able to find the rate of reaction of the decomposition of hydrogen peroxide. * Control Variable-
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Raw Data: Table 1.1: Raw Data Table Temperature (°C) ±0.5 Initial Mass (grams) ±0.001 Final Mass (grams) ±0.001 Initial Volume (cm³) ±0.5 Final Volume (cm³) ±0.5 Pressure (hPa) ±0.5 24.0 0.000 0.072 0.1 60.4 1008.0 24.0 0.000 0.060 0.1 55.9 1008.0 24.0 0.000 0.053 0.1 54.9 1008.0 24.0 0.000 0.044 0.1 45.4 1008.0 24.0 0.000 0.032 0.1 34.3 1008.0 24.0 0.000 0.025 0.1 23.3 1008.0 Table 1.2: Qualitative Data: Before During After Magnesium
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temperature‚ through heat transfer. The coefficient of thermal expansion describes how the size of an object changes with a change in temperature. Specifically‚ it measures the fractional change in size per degree change in temperature at a constant pressure. Several types of coefficients have been developed: volumetric‚ area‚ and linear. This is used depending on the particular application and which dimensions are considered important. For solids‚ one might only be concerned with the change along a
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The scientist we chose for our project is John Dalton. Who is John Dalton‚ you might ask? John Dalton was an English chemist‚ physicist‚ and meteorologist. He is best known for the discovery of the modern atomic theory. The rules for the atomic theory are that all matter is made up of tiny particles‚ or atoms‚ atoms are always invisible and indestructible‚ all atoms of a given element are identical in mass and properties‚ compounds are formed by a combination of two or more different kinds of atoms
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Although this particular example is pertaining to a younger girl trying to make it through high school‚ it would not be uncommon for a similar situation to occur involving a business-driven woman at an office or a man trying to bulk up at the gym. The pressure to improve our appearances is prominent in modern society‚ and is often blamed on the substantial amount of media and the entertainment world‚ but the fact of the matter is that this strive for perfection has been pushed upon mankind long before
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during the lab. Data Set Pressure in kPa Volume in mL 1 150 20 2 100 30 3 75 40 4 60 50 5 45 60 6 40 70 Graph: [10 points] Create a graph of your data for this part of the lab. You may use any graphing tool to create the graph‚ but be sure to follow common guidelines for creating a graph. INSERT GRAPH HERE Conclusion: Answer the following questions after completing the lab. 1) Describe the relationship that you observed between pressure and volume in this lab. Refer
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moles of gas produced. Where P is the pressure in atm‚ V is the volume in Liters‚ n is the number of moles‚ R is the constant 0.0821(atm*L/K*mok)‚ and T is the temperature in Kelvins. In this lab the volume of reaction space needs to be measured. I have chosen to use Magnesium and the amount of H2 gas that the amount of magnesium‚ (.04g)‚ used is 0.00229 mol H2. Procedure 1. Fill a 125 mL flask with 50 mL of HCl (aq) 2. Obtain and set up the pressure sensor 3. Record intial temperature‚(
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Conclusion: Boyle’s law states that for a fixed amount a gas at a fixed temperature volume is opposite to its pressure. The air in the marshmallow is what follows Boyle’s law. The marshmallow is similar to a gas because when the pressure in the syringe is decreased the pressure in the marshmallow is increased. The volume increases in the marshmallow. So basically when the plunger is pulled out the pressure in the syringe decreases and the volume of the marshmallow
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