elemental analysis makes an experiment more efficient in determination of unknown compound. The color‚ odor‚ melting point and boiling point determines the physical state and properties of a compound. It also determines its volatility in respect to temperature. The functional group of a compound can be determined on a basis of a spectra formed by a NICOLET iS5 FT infrared spectrometer. The IR sample of a liquid is obtained on a pure liquid called a neat sample whereas solid sample was obtained with
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Continuous stirred tank reactor models Dr. M.J. Willis Dept. of Chemical and Process Engineering‚ University of Newcastle. e-mail: Tel. Written: Updated: mark.willis@ncl.ac.uk 0191 222 7242 November‚ 1998 April‚ 1999; March‚ 2000 Aims and objectives Chemical reactors are the most influential and therefore important units that a chemical engineer will encounter. To ensure the successful operation of a continuous stirred tank reactor (CSTR) it is necessary to understand their dynamic characteristics
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Here are a couple examples: |Introduction | |This report discusses an experiment to study the relationship of temperature and pressure of an ideal gas (air) that was heated in a closed | |container. Because the ideal gas was in a closed container‚ its volume remained constant. The objective of the experiment is to test whether the | |ideal equation of state
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this experiment‚ recrystallization will be the method used to purify the solute sulfanilamide using ethanol as the solvent. Based on the solubility curve on the solubility versus temperature graph‚ the ideal solvent will allow the solute to be soluble at higher temperatures and insoluble at lower temperatures‚ thus making ethanol an excellent solvent for crystallizing sulfanilamide. Sulfanilamide is first dissolved in the smallest amount of ethanol just enough to dissolve the sulfanilamide
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through the panel at a flow rate of 8.7 litres/min. The water temperature entering the first panel was 21.1°C and leaving was 22.4°C‚ giving us a 1.3°C temperature rise and we increased the number of panels to reach the wanted temperature. Once implemented‚ such proposed produce will be able to provide
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Organic Lab 1: Fractional Distillation Discussion: With the purpose of the experiment being to identify the 30 mL of unknown liquid‚ the theoretical basis of simple and fractional distillation must be deconstructed and applied to the data obtained describing the liquid in question. Simple distillation is a separation technique which can be used to separate and purify distillates from a liquid mixture which ideally contains one volatile and one non-volatile compound. If such ideal conditions are
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due to a temperature gradient. The microscopically diffusing and colliding objects include molecules‚ electrons‚ atoms‚ and phonons. They transfer microscopically disorganized kinetic and potential energy‚ which are jointly known as internal energy. Conduction takes place in all forms of ponderable matter‚ such as solids‚ liquids‚ gases and plasmas. By conduction‚ as well as by thermal radiation‚ heat spontaneously flows from a body at a higher temperature to a body at a lower temperature. In the
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Introduction Competition is an important interaction that occurs between living organisms that co-exist in an environment. All living organisms need certain resources in order to survive and reproduce. These resources include but are not limited to nutrients‚ food‚ water‚ and a space to live in. When these resources become limited in a shared area‚ organisms are forced to compete with each other for the resources that they need. This competition can occur among individuals belonging to the same
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end. The melting point is then determined using a melting point apparatus (Figure 1) that simultaneously heats both the sample tube and a thermometer. The temperature range over which the substance melts is recorded. Melting is said to begin when the first indication of liquid is seen. The end of the melting point range is the temperature at which all of the solid material has become a liquid. Some pure materials possess a very narrow melting range‚ perhaps as little as 0.5-1.0 °C‚
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