Practical 6 -Determining the Gas Constant Aim: To verify the gas constant as 8.31 J/mol/K ( ) and to calculate the molar mass of butane. Theory: The ideal gas law‚ PV=nRT‚ is used to model an ideal gas‚ which is a gas with no intermolecular forces other than those of collisions‚ perfectly spherical and elastic particles. Although an ideal gas is a theoretical model and so cannot exist in practice‚ most gases behave fairly similarly to an ideal gas. Gases behave more like an ideal gas when they are at a higher
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pieces of ham and 20 pieces of bread? 20B x 1S = 10S 21H x 1S=7S 2B 3H The smaller of answer from the 2 givens is the answer. The reactant that produced the smaller amount is called the limiting reactant. (in this case‚ ham) Part IV: Gas Laws
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PART A It is hypothesised the strongest method for curing eye defect is Gas permeable contact lenses (GP lenses). These lenses are able to maintain their shape instead of adapting to the shape of the cornea due to its firm oxygen permeable material. The lenses can provide improved vision‚ deposit resistance and are inexpensive as they are long lasting. PART B Myopia and Hyperopia are both conditions caused by refractive errors in the eye and possess an array of symptoms PART C Vision is able to
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Do Gas Stations cause soil pollution? Soils are extremely important parts of every ecosystem. They are a home to many microbes and provide vital nutrients to the plants that live in them. pH is the measure of acidity or alkalinity of a solution‚ and most organisms have a very small range of pH values in which they can survive. 7 is considered neutral‚ lower than 7 is acidic (lemon juice‚ rain water) and above 7 is basic (bleach‚ soap). Lots of urban areas are dependent on car transportation‚
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−1 − 12 z2 d 5 = 0 dt z3 0 8 4 z4 3 3 x1 x2 = Chen CL 9 Process Simulation Simulation of A Gas Process Consider the gas tank shown below. A fan blows air into a tank‚ and from the tank the air flows out through a valve. Suppose the air flow delivered by the fan is given by fi(t) = 0.16mi(t) where fi(t) is gas flow in scf/min‚ (scf is cubic feet at standard conditions of 60oF and 1 atm); mi(t) is signal to fan‚ %. The flow through the valve is expressed
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transferred to a 1.1-L flask at 25°C‚ what will be the gas pressure in the flask? 2. A balloon has temperature of 28°C. What will be the final temperature of the gas if the volume is reduced to half of the original under isobaric condition? 3. Calculate the volume occupied by 4.23 kg of methane gas at STP. 4. Dry ice is useful in maintaining frozen foods because it vaporizes to CO2 (g) rather than melting to a liquid. How many liters of CO2 gas‚ measured at STP‚ will be produced by the vaporization
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Experiment 11 The Gas Laws Introduction: In this experiment you will (1) determine whether Boyle’s Law applies to a mixture of gases (air) and (2) calculate the gas constant‚ R‚ by determining the volume of a known amount of gas (H2) at a measured temperature and pressure. Determination of Whether Boyle’s Law Applies to Air Boyle’s Law states that for a fixed amount of gas at constant temperature‚ the pressure of the gas will vary inversely with the volume so that P ∝ 1/V or PV = a constant (if
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Gas Chromatography Purpose: The purpose of the gas chromatography lab is to find out how different substances interact with the surface of a solid. Chromatography is a separation technique that depends on the relative distribution of the components of a mixture between a mobile phase and a solid stationary phase. Chromatography measures the tendency of a substance to interact with the surface of a solid or to remain in a mobile phase. When doing a chromatography lab the mobile phase has to
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ORO CITY GAS ABSORPTION COLUMN - MASS TRANSFER EXPERIMENT B ChE 35 Chemical Engineering Laboratory II Acabo‚ Dean Cris Aguirre‚ Ian Carlo Belarmino‚ Arniel Catan‚ Charles John Engr. Marco Theodore E. Escaňo ChE 35 Instructor October 2012 OBJECTIVE: To calculate rate of absorption of carbon dioxide into water from analysis of liquid solutions flowing down the absorption column. THEORETICAL BACKGROUND: Absorption refers to the transfer of a gaseous component from the gas phase to a
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the lightness of the metal. Both of these metals are reactive with acids. The most common acid in they react with is hydrochloric acid. In this lab‚ we collected a gas produced in a reaction and compared it with the volume that was actually collected to the “target volume” we calculated at the beginning of the class using stoichiometry and the Ideal Gas Law. We had to figure out what the temperature of the room was because the laboratory was not under the conditions of STP. We were given two different
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