temperature is this in F? 5. Many home freezers maintain a temperature of 0 F. Express this temperature in C 6. Liquid nitrogen boils at –195.8 C. Express the boiling point of liquid nitrogen in kelvin. 7. Dry ice (carbon dioxide) changes from a solid to a gas at –78.5 C. What is this temperature in F? 8. How many square kilometers are equivalent to 28.5 cm ? 9. Report the results of the following calculations to the correct number of significant figures. i) 423.1K to°C ii) 6.167 + 83.1 5.3 iii) (13.7 + 0
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compound. Many factors go into the estimation of the boiling point of a liquid such as the shape (round, oval, elongated), the mass and most importantly, hydrogen bonding (H-bonding). Methane with a mass of 16 does not engage in H-bonding and is a gas at room temperature while water (mass 18) boils at 100oC. While we can often guess the relative boiling points of a series of compounds, it is rather difficult to calculate a boiling point based on first principals. Similarly,
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Expt. 11 Phase Changes Purpose: To examine the states of matter of H2O under changes in temperature and pressure. Data: | Pressure (atm) | Temperature(degrees Celsius) | Gas Volume(L) | Liquid Volume(L) | Ice Volume(L) | Heat change | Room Temperature | 1.000 | 20.00 | 0.000 | .1470 | 0.000 | 0.000 | 4 atm. | 1.000 | 200.0 | 317.6 | 0.000 | 0.000 | 0.000 | .5 atm | .5000 | 150.0 | 566.7 | 0.000 | 0.000 | 412.0 | Lowest atm found | 0.004 | -20.00 | 0.000 | 0.000 | .1600 | -144
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temperature of 65 to 120 degrees Fahrenheit. The article also talks about the storage of the cold plasma. Its stored in a housing unit having a high voltage electrical inlet port and a gas compartment having a gas inlet port and a gas outlet port. The embodiment also has a modular electrode disposed within the gas compartment, wherein the modular electrode is coupled to the high voltage electrical inlet port. But with creating and storing cold plasma the exhibited electrode degradation and overheating
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Module 6 – Written Assignment – Analysis of a Specific Medical Advancement – Jeffrey Fischbein – 2/11/14 Rocket-Powered Prosthetic Arm We have all heard the cliché “you don’t appreciate what you have until it’s gone”. For some it can be a materialistic thing as a car or a cellphone. Others are boyfriends or girlfriends that recently broken up. But for some, it can be something much more than that. Something that is more personal to them. To others it can be a limb that was lost from war, an accident
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Lab - Disturbing An Equilibrium System OBJECTIVE: To study factors which can disturb an equilibrium system MATERIALS: Spatula, several test tubes, beakers, foil, test tube rack, pipette, test tube clamp PROCEDURE: General Procedure: 1. Obtain a test tube rack and six test tubes (clean!). 2. Prepare a hot water bath (one per table) using a 250 mL beaker, tap water and hot plate. 3. Prepare an ice bath (one per table) using a 250 mL beaker, crushed ice and tap water. Reaction
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EXPERIMENT 3 GROUP B AIM: To find the overall efficiency of plate column operating under total reflux, for a binary system (iso-propanol & n- propanol). APPARATUS: * Distillation Column with reboiler * Automatic digital refractometer * Two fluids with different volatilities. PROCEDURE: * Distillation column was filled with the two fluids. * Then we switched on the heater and set the temperature to 126.6 ̊C * And then we allow the system to reach the equilibrium.
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Melanie Mickens February 21, 2014 Statement of Purpose: The purpose of this lab was to determine the freezing temperature of the pure solvent, lauric acid, as well as finding the freezing temperature of a mixture of lauric acid and benzoic acid. Along with that, the freezing point depression of a mixture was to be calculated and along with the molecular weight of benzoic acid. Background: Colligative properties are properties which depend only on the number of solute molecules present in a
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The purpose of this experiment was for the student to be able to perform the dehydrobromination of meso-stilbene dibromide in order to produce an alkyne, diphenylacetalyene. The dehydrobromination of meso-stilbene dibromide requires removal of two hydrogen bromides—in other words, a double elimination. In order for the elimination of the halogen to happen, the hydrogen being attacked and the leaving group need to be on the same plane. More specifically, the molecule has to be in an anti-periplanar
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Assignment- 6 6.a State of matter Student Name: Urbashi Dewan Student ID: UKDLP 7712 Course Title: IGCSE Combined Science We are all surrounding by a lots of matter. Everywhere we look we can found matter. In science, matter is such a thing that has mass and can takes up space. Generally, matter is not transparent like water. We can also observe matter. From this definition, we can say that matter has some criteria so
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