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Given the Volumetric Analysis of a Natural Gas: CH4 = 67.3% Nitrogen = 9.6% O2 = 2.7% CO = 0.8% C2H6 = 15.4% CO2 = 1.8% H2 = 2.4% Calculate the A/F ratio by mass considering CO = 6.1% CO2. Note: Use four (4) decimal places in your solution and answer.
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- Find the density of the air at 0 degrees celsius and 1.013 x 105 Pa. One mole of air may be assumed to be 79% nitrogen (Mnitrogen = 28.0 g) and 21% oxygen (Moxygen = 32.0 g)A core sample is saturated with an oil (?o = 35oAPI), gas and water. The initial weight of the sample is 224.14 g. After the gas is displaced by water (?w = 1 g/cm3 ), the weight is increased to 225.90 g. The sample is the placed in a Soxhlet distillation apparatus, and 4.4 cm3 water is extracted. After drying the core sample, the weight is now 209.75 g. The sample bulk volume, 95 cm3 is measured in a mercury pycnometer. Find the porosity, water saturation, oil saturation, gas saturation and lithology of the core sample.Calculate the pressure at the base of a mercury column 400 mm high. The mercury density at room temperature is 13.5951 g / cm3.Express the result in column, atmosphere, psi, pascal, and bar units. Calculate the pressure exerted on the drum skin of a diver located at a depth of 20 feet below sea level. Assume that the seawater density is: 1 gr / cm3. Calculate the molar volume of Cu2Te. Express this volume in mol/liter and mol/cm 3 units. ( rm=7.270 g/cm3) Use the ideal gas law and the van der Waals equation to calculate the pressure of ammonia gas at a temperature. T = 300 K the molar volume is V = 24 liters / mol
- List some industrial plants in kenya and indicate the gaseous pollutants they emitAir at 25 degree celsium and 1 atm has 78% by volume N2, 21% by volume O2, and 0.05% by volume methyl ethyl ketone (MEK, CH3CH2COCH3) a) What is the concentration of each component in ppm b)What is the concentration of each in micrograms/cubic meterChemical conversions 1. What is the molecular weight of nitrobenzene, often known as C_6*H_5*O_2*N? 2. How many moles of nitrobenzen are contained in 50.0 g? 3. What is a substance's density in grammes per cubic centimetre if its specific gravity is 1.203? 4. How much space is filled by 50.0 g of nitrobenzene in cubic metres, feet, and inches? 5. What is the pressure at the base of a cylindrical container holding nitrobenzene that has a base that is 1 inch in diameter? What does gauge pressure mean? 6. How many molecules of nitrobenzene are in 50.0 g?
- The alcohol content of hard liquor is normally given in terms of the “proof,” which is defined as twice the percentage by volume of ethanol (C2H5OH) present. Calculate the number of grams of alcohol present in 1.00 L of 75-proof gin. The density of ethanol is 0.798 g/mL. Round off to 4 sig. figures for all calculations made prior to final answer and the final answer should be in 3 sig. figuresA mixture of CO2 and water vapor is at 110 kPa, 200 ∘C. As the mixture is cooled at a constant pressure, water vapor begins to condense when the temperature reaches 70 ∘C. Part A Determine the mole fraction of CO2 in the mixture. Express your answer to three significant figures. Part B Determine the mass fraction of CO2 in the mixture. Express your answer to three significant figures.TRUE OR FALSE __________ 6. The bowl of the funnel for gravity filtration may be filled to the brim. __________ 7. Transfer liquids and solutions from a reagent bottle or beaker with the aid of a stirring rod. __________ 8. Never touch, taste, or smell a chemical unless specifically told to do so. __________ 9. If uncertain as to how to dispose of a chemical, dumping it into the sink followed by copious amount of water is a safe disposal procedure. __________ 10. A centrifuge machine should be balanced with an even number of centrifuge/test tubes, placed across the rotor from one another, with equal volumes of liquid.
- In an experiment to calibrate a 50 ml burette at 30 ⁰C, a student calculated the volume corrections for a series of volumes delivered by the burette and recorded the following data 1. Plot a graph of volume corrections against apparent volumes and briefly describe the nature of the graph 2. If a student used this burette to measure 45ml of water at 30⁰C, what will be the true volume of water delivered at this temperaturePlease use Vc=64.20L for hydrogen gas.Volumetric analysis of the products of combustion of an unknown hydrocarbon, measured on a dry basis, gives 10.4% CO2 1.2% CO 2.8% O2, and 85.6% N2 Determine: a): the complete actual combustion equation, with coefficients of O2 and N2 separately in the reactants, b): the composition of the hydrocarbon and tell that whether such specie exists in nature. c): the percent theoretical air. Take oxygen in air as: 23.3% by mass and 21% by mole. NOTE: Do not solve this problem in tabulated form, otherwise your answer will be considered totally wrong.
