•• A VIATION" WEATH ER AC 00-6A For Pil s and Flight perations Personnel R evised 1 975 DEPARTMENT OF TRANSPORTATION FEDERAL AVIATION ADMINISTRATION FI ight Standards Service DEPARTMENT OF COMMERCE NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION National Weather Service W ashington‚ D.C. R eprinted b y a sa PUBLICATIONS E ditoria 1 N ote: F igures 137 t hrough 139 and 142 on p ages 1 60‚ 1 61‚ a nd 165 h ave b een r earranged t o a lign w ith t heir p roper
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ways to find the molar mass of a substance. One way‚ if the substance is a gas‚ is to use the Ideal Gas Equation to find molar mass. The standard equation reads PV=nRT where “n” is the number of moles present‚ “P” is the pressure (which is obtained by reading the barometric pressure of the room with the class barometer)‚ “V” is the volume of the gas‚ “R” is the universal constant‚ and “T” is the temperature of the gas. The experiment’s objective is to calculate the experimental value of molar mass
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dram vial inside the Erlenmeyer flask when the ending volume of N2 gas was recorded. The experimenter shaking and swirling the flask stopped prematurely believing that the reaction was complete. Since all the gas bubbles weren’t released‚ the gas pressure wasn’t completely accurate. With excess gas still remaining in the Erlenmeyer flask‚ the meniscus level was higher on the measuring tube than it should have been. Thus‚ the recorded value for the volume of N2 gas collected was less than it was actually
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Lab 5Cellular Respiration Introduction: Cellular respiration is an ATP-producing catabolic process in which the ultimate electron acceptor is an inorganic molecule‚ such as oxygen. It is the release of energy from organic compounds by metabolic chemical oxidation in the mitochondria within each cell. Carbohydrates‚ proteins‚ and fats can all be metabolized as fuel‚ but cellular respiration is most often described as the oxidation of glucose‚ as follows: C6H12O6 + 6O2 → 6CO2 + 6H2O + 686 kilocalories
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NOT FOR ELECTRONIC STUDENT ACCESS ONLY FOR CLASSROOM USE!! Unit 9: Stoichiometry Practice 1. Differentiate between the significance of the coefficients in a balanced chemical equation and the significance of the subscripts in a chemical formula. · Coefficients show the correct proportions of atoms and molecules in a chemical reaction. They are normal sized numbers placed at the beginning of the chemical formulas in a chemical reaction during the process of balancing. They tell how many of an entire
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liquids and solids. NO2 gas 4 Force Pressure = Area (force = mass x acceleration) Units of Pressure 1 pascal (Pa) = 1 N/m2 1 atm = 760 mmHg = 760 torr 1 atm = 101‚325 Pa Barometer For measuring atmospheric pressure 5 The force experienced by any area exposed to Earth’s atmosphere is equal to the weight of that column of air above it. 10 miles 0.2 atm 4 miles Sea level 0.5 atm 1 atm 6 Manometers Used to Measure Gas Pressures closed-tube open-tube Patm h = PHg
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Bottomhole pressure measurement and analysis Various modes of fracture propagation can be inferred from straight-line periods that develop on log-log plots of net pressure versus time. These modes characterize different fracture shapes. Fracture closure and fluid leakoff parameters can be determined from the analysis of fracturing pressures resulting from closure (pump-in/flowback [PI/FB]) tests. Chapter 9 provides additional fracturing analysis information. Collection and analysis of
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(rounded to SF= 291 K) 2. 1 atm 1 atm 10 mm 10 mm 2.54 cm 2.54 cm According to the digital barometer our teacher provided‚ the barometric pressure in the lab is 29.77 in Hg‚ which will need to be converted to atmospheric pressure. 760 mm Hg 760 mm Hg 1 cm 1 cm 1 in 1 in 29.77 in Hg x x x = 0.9949 atm Barometric pressure: 756.2 mm Hg or 0.9949 atm 3. Volume of gas collected: 100.0 mL 4. Initial mass of butane lighter: 21.88 g 5. Final mass of butane lighter:
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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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the behaviour of animals to help them predict the weather. Through development of our understanding‚ of the atmospheric patterns and the relationship to weather dynamics‚ today it is much easier to forecast a more accurate weather prediction. To better understand the mechanisms which control our weather and climate‚ we have to look at the Earth’s atmosphere. In particular‚ the atmospheric circulation‚ its processes and how these create weather patterns. It is the understandings of these processes
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