EXPERIMENT 2: BATCH DISTILLATION AT CONSTANT REFLUX OBJECTIVE: To operate a batch distillation unit at constant reflux. To examine the change in top and bottom composition over time in a batch distillation. PROCEDURES: 1. Perform the general start-up procedures (Section 4). Refer appendix 1. 2. Record initial volume and refractive index of the liquid mixture in the reboiler. 3. Set the heater power to 1.5kW. 4. Set reflux timer to 10 second for set 1 and 30 second for set 2. ( Note: Set 1:
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FUTURE SIMPLE OR PRESENT SIMPLE A. 1. I (go) and see Venice as soon as I (reach) Italy. 2. If the sun (be) red‚ it is a sign that we (have) a fine day tomorrow. 3. If you (not be) at home by six‚ I (eat) without you. 4. If Mother (not go) to the market early‚ she (not get) fresh fish. 5. If Adam (sell) his car he (afford) a holiday in Florida. 6. Take some coins in case you (need) to phone. 7. If nothing (go wrong)‚ they (deliver) the furniture today. 8. Unless you (change) your mind we (not
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Simple Pendulum PURPOSE The purpose of this experiment is to study how the period of a pendulum depends on length‚ mass‚ and amplitude of the swing. THEORY A simple pendulum is an idealized model consisting of a point mass (sometimes called a pendulum bob) suspended by a massless unstretchable string. When the bob is pulled to one side of its straight down equilibrium position and released‚ it oscillates about the equilibrium position. The path of the bob is not a straight line but an arc
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Simple Pendulum Experiment In this experiment you will make a simple pendulum consisting of a plumb bob and a piece of string anchored at two points. By attaching the string to two points the normal precession that would occur will be eliminated. [pic] Items to be turned in as report: 1) all discussion question answers (be thorough) 2) graph of period squared versus length 3) simple data tables of collected data 4) graphical analysis answers 5) using your values for g‚ calculate
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I. Abstract: This experiment tests two parameters‚ deflection and strain‚ associated with a simple truss subjected to a loading at its bottom end as would be the case if a constructed bridge was subjected to loadings by cars‚ trucks‚ trailers‚ pedestrians‚ etc. The set up contained an instrumented truss mounted in a test frame with strain gauges attached to the center of each truss member and a linear potentiometer displacement transducer (LPDT) placed underneath the truss assembly to measure displacement
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students to familiarize and perfect the simple distillation method to produce 4-Methylcyclohexene and to gain experience using an IR spectroscopy to characterize the product of the reaction in favor of equilibrium. B. Results and Discussion: C. Experimental: 24 mL of 4-methylcyclohexanol‚ 5mL of phosphoric acid‚ and 1mL of concentrated sulfuric acid was added to a 250 mL round bottom flask and mixed thoroughly with a magnetic stirrer. A simple distillation set up was installed with a 250mL round
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One major observation made throughout this experiment was during the steam distillation. As the steam distillation started and the solution in the flask began heating‚ it was clear that too much stopcock grease was used around the glassware. The grease from the connecting ends of the three way connecting tube was melting and seeping into the clove and water solution in the two necked round bottom flask. The solution in the flask was immediately discarded and repeated with clean glassware and a very
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A THE SIMPLE PENDULUM • General Background: A mass m hanging from a string whose length is L and a pivot point on which this mass is fixed are what a simple pendulum (which was discovered during the 10th century by Ibn Yusuf) consists of. During the 17th century‚ it is developed by some physicist‚ especially by Galileo. When the mass hanging from the string is released with an initial angle‚ it starts to move with a periodic motion. The motion can be approximated as a simple harmonic
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removing the –OH group on 4-methylcyclohexanol via dehydration and to have a double bond form via a loss of a hydrogen on a β-Carbon. Many techniques and skills were developed in this lab. Among them were dehydration‚ isolation‚ drying‚ and distillation. We used all of these techniques to get the product we were looking for. In addition to these experimental techniques we also verified our product via spectroscopy which is a new technique. Using IR spectroscopy we were able to specifically
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Goals The purpose of the lab experiment is to explore simple harmonic motion (SHM). We will accomplish this through the validation of harmonic calculations and ultimately creating a time piece (oscillator) Method In part A (Simple Pendulum) we will measure the effects of mass on the period of the pendulum. We will also calculate the period using small angular displacements and compare the results. We will also explore the effects on the period when the angular displacement is not “very small”
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