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- Solid ammonium chloride, NH4Cl, is formed by the reaction of gaseous ammonia, NH3, and hydrogen chloride, HCI. NH₂(g) + HCl(g) → NH₂Cl(s) A 4.68 g sample of NH3 gas and a 4.68 g sample of HCl gas are mixed in a 1.00 L flask at 25 °C. Identify the limiting reagent. O HCI O NH₂CI O NH3 How many grams of NH₂Cl will be formed by this reaction? mass: What is the pressure in atmospheres of the gas remaining in the flask? Ignore the volume of solid NH4Cl produced by the reaction. P = atmThe human body burns glucose (C6H12O6) for energy according to this chemical reaction: C6H12O6+6O2→ 6CO2+6H2O The products of the reaction are carbon dioxide CO2 and water H2O Interestingly, all of the carbon dioxide and much of the water exits the body through the lungs: on every breath, the average person exhales 500.mL of air, which is typically enriched to 4% CO2 and 5% water vapor by volume. In short, when a person loses weight by dieting, the weight that is lost actually departs his body as a gas, every time he exhales. Each kilogram of body fat lost requires exhaling about 2.9kg of carbon dioxide. Calculate how many breaths it takes an average person to "exhale" 0.50kg of fat. Round your answer to the nearest thousand. You'll need to know that the density of CO2 is 2.0 kg/m^3 .What is the value of the Avogadro constant? Keep the first four digits from the scientific notation coefficient ( ?.??? *10x) and write it it standard notation with all zeroes, adding commas in the appropriate locations.
- Complete and balance each of the following equations for gas-evolution reactions. (NH4)2SO4(aq)+Ca(OH)2(aq)→ Express your answer as a chemical equation. Identify all of the phases in your answer. I tried to do the equation, but it says it's wrong.The U.S. proven natural gas reserves in 2013 were 323 trillion ft3 . How long will these reserves last if there are no imports or exports and if the U.S. annual rate of use of 24.5 trillion ft3 continues?(a) Find the density in SI units of air at a pressure of 1.00 atm and a temperature of 20 °C , assuming that air is 78% N2, 21% O2, and 1% Ar , (b) Find the density of the atmosphere on Venus, assuming that it’s 96% CO2 and 4% N2 , with a temperature of 737 K and a pressure of 92.0 atm.
- ClFx is an interhalogen compound which is known to be very irritant and toxic. These compounds are commonly used as rocket fuel and in the semiconductor industry. ClFx can be neutralized by reacting it with uranium to produce uranium hexafluoride and chlorine fluoride. The reaction of the compound with some uranium yields 5.63 grams of uranium hexafluoride and 457 ml of chlorine fluoride at 75oC and a pressure of 3.00 atma). Find X!b).Determine the hybridization and molecular geometry of the compound!Which piece of equipment would you use to measure 7.10 mL of CuSO4 (aq)?Describe in your own words the Kinetic Molecular Theory of gases. The Kinetic Molecular Theory of gases tells us that the energy content of any gas is related only to its temperature. It also tells us that it is possible to compute the "RMS" (root mean squared) velocity of any gas molecule if you know its formula weight and its temperature. Using this information describe how you might compute the RMS velocity of sulfur dioxide (SO2) in the atmosphere of the planet Venus (T = 820 F), the RMS velocity of oxygen (O2) in the atmosphere of Earth (T = 50 F), or the RMS velocity of carbon dioxide (CO2) in the atmosphere of Mars (T = - 80 F).
- . Water has a density of 0.96 g mL- at its boiling point of 100 °C under standard atmo- spheric pressure. The density of water vapor is about 1600 times less than the density of water under the same conditions. If a 1.00 L beaker of water was converted into water vapor at 100 °C under standard atmospheric pressure, what would the volume (in L) of the water vapor be?9:38 نقطتان )2( Q1. The volume of air(N2 and 02) needed for complete combustion of 1 kg of propane * -:(C3H8 ) is 21 O 15.9 O 18.8 O 23.8 O ع غ ف ق ث ص ض ي س ش 123 مسافة اذهب J.20 cm3 of a gaseous hydrocarbon required 90 cm3 of oxygen for complete combustion. Both volumes were measured under the same conditions.The hydrocarbon must be?