------------------------------------------------- Abstract: ------------------------------------------------- ------------------------------------------------- The aim of this lab was to determine the volume of one mole of hydrogen gas at STP (standard temperature and pressure). In the experiment‚ a magnesium ribbon was placed at the bottom of an eudiometer tube and allowed to react with 2M hydrochloric acid. The volume of hydrochloric displacement was measured and calculations determined the molar volume of hydrogen gas
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These unattainable dreams often make the children feel inferior and breeds anger that causes them to reject the parent’s pressure. In the novel The Joy Luck Club‚ Suyuan Woo is constantly finding ways to test her daughter‚ Jing-Mei’s‚ abilities. These tests ranged from memorizing state capitals in a set amount of time to performing complicated multiplication problems in her
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same volume when measured under the same conditions of temperature and pressure. In this experiment you will calculate the volume of 1 mole of hydrogen at room temperature and pressure. Intended lesson outcomes By the end of this practical you should be able to: • further develop skills in manipulating apparatus and accurate measurement; • use the mole concept; • calculate the molar volume at room temperature and pressure. Background information Magnesium reacts with acid to give a salt
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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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been a one of the major challenging problem for many year. By comparing the fuselage of a conventional aircraft which is a cylinder shape‚ the stress level of a flatter shoebox shape type BWB fuselage has a higher magnitude ‚because the internal pressure causes blending stress of the whole fuselage instead of the stress act on the skin membrane. Due to the primary design of the conventional fuselage structure are focus on membrane stress‚ a new design and material are needed ‚in order to increase
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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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