A mixture of CO₂ and Kr weighs 35.0 g and exerts a pres-sure of 0.708 atm in its container. Since Kr is expensive, youwish to recover it from the mixture. After the CO₂ is completelyremoved by absorption with NaOH(s), the pressure in the con-tainer is 0.250 atm. How many grams of CO₂ were originallypresent? How many grams of Kr can you recover?

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Q: :uouenb C,H&O7(s) +3 NaHCO3(s) + H2O(1) --> NagC,H8O7(s) + 3H20(1) + 3CO2(g) 188.7 g C6H807(s) is…

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Q: A cylinder, with a piston pressing down with a constant pressure, is filled with 2.10 moles of a gas…

A: Given:Initial Moles of gas = 2.10 Initial Volume  =  46.0 L Leaked Moles = 0.700…

Q: A neon sign is made of glass tubing whose inside diameter is2.5 cm and whose length is 5.5 m. If the…

A: Since we know that PV = nRT  where P = pressure  V = volume of gas n = moles of gas R = 0.0821  T =…

Q: 60 L tank containing 2.5 mol of CH4 . Initially, when Poutside was 1 atm, there was no leakage. But…

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Q: 6.3 liters of sulfur vapor, S8(g), at 753.2°C and 8.41 atm is burned in excess pure oxygen gas to…

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Q: 2Al + 6HCl --> 2AlCl3 + 3H2   If 75.65g of Al react with excess HCl, what volume is occupied by…

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Q: Air is a mixture of gases. By percentage, it is roughly 78 percent nitrogen,21 percent oxygen, and 1…

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Q: mass of 8 g at ô°C and 0.87 atm occupies a olume which is equal to a volume of 11g CO2 at STP.…

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Q: Automobile air bags are inflated by nitrogen gas generated by the rapid decomposition of sodium…

A: To find the grams of NaN3 required Given data- Volume of N2=36L Pressure of N2=1.15atm Temperature…

Q: At what temperature does 0.037405 moles of Ne in a 880.5 mL container exert a pressure of 0.971 atm?…

A: Gas laws , PV = nRT

Q: A gaseous hydrogen- and carbon-containing compound is decomposed and found to contain 82.66% carbon…

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Q: A study of the effects of certain gases on plant growth requires a synthetic atmosphere composed of…

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Q: When 15.0 g of fluorite (CaF₂) reacts with excess sulfuricacid, hydrogen fluoride gas is collected…

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Q: In the first step of the industrial process for making nitricacid, ammonia reacts with oxygen in the…

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Q: Give a clear handwritten answer...

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Q: An atmospheric chemist studying the pollutant SO2 places a mixture of SO₂ and O₂ in a 2.00-L…

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Q: A cylinder, with a piston pressing down with a constant pressure, is filled with 2.20 moles of a gas…

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Q: has a volume of 100 dms 500 mmlg. at 320 mmtg. prvided temporature is constant- 2 gas hes a volume…

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Q: A sealed flask contains 3.1 L of a gas at 2.4 atm and 22.7 °C. If the density of the gas is 9.7 g/L,…

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Q: What is the Total presssure of the a mixture of 0.2 moles of gas A and 0.5 moles of gas B with equal…

A: Mole fraction Xi = Ni/N Where, Ni = Number of mol of ith species             N = total number of mol…

Q: At constant pressure, the mean free path 1l2 of a gas moleculeis directly proportional to…

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Q: Many gases are shipped in high-pressure containers. Considera steel tank whose volume is 55.0…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: The metabolic oxidation of glucose, C6H12O6, in our bodiesproduces CO2, which is expelled from our…

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Q: |If 32 L of mitrogen at 6 atm avre Comp resard to q atm at constant temperntune What is the rew…

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Q: A large flask with a volume of 936 mL is evacuated and found to have a mass of 134.66 g. It is then…

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Q: An “empty” spray can contains residual propellant gas that has a pressure of 772 torr at 23oC.…

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Q: A 1.40-L flask is filled with propane gas (C3H8), at 1.00 atm and -15.0°C. What is the mass of the…

A: P V = n R T  where  P = Pressure of gas =  1 atm  V = volume of gas =  1.4 L  R = universal gas…

Q: A mixture in which the mole ratio of hydrogen to oxygen is 2:1is used toprepare water by the…

A: Given: Initial total pressure in the container = 0.950 atm Initial temperature = 25°C = 298 K Final…

Q: (1) The following gases were mixed and placed in a 10-L container at STP: 1.00g He, 0.50g Xe, and…

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Q: A weather balloon containing 600. L of He is released nearthe equator at 1.01 atm and 305 K. It…

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Q: For many purposes we can treat nitrogen (N.) as an ideal gas at temperatures above its boling peint…

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Q: What volume of water vapor in liters could be generated at 0.989 atm and 407. K by the combustion of…

A: Given :-  C5H12(g) + 8 O2(g) ---> 5 CO2(g) + 6H2O(g) Mass of O2 = 292.07 g  Pressure = 0.989 atm…

Q: You are given 2.263 g of a mixture of KClO3 and KCl. When heated, the KClO3 decomposes to KCl and…

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Q: Assume that an exhaled breath of air consists of74.8% N2, 15.3% O2, 3.7% CO2, and 6.2% water…

A: The partial pressure of each component may be calculated as:

Q: f you place 3.00 mol of N2 and 4.00 mol of O2 in a 35.0 L container at 25.0 °C, what will the…

A: From given data  T = 25 °C = 273 + 25 = 298 K V = 35 L  n1=3 n2= 4 Also, gas constant, R = 0.0821…

Q: Assume that an exhaled breath of air consists of74.8% N2, 15.3% O2, 3.7% CO2, and 6.2% water…

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Q: If 5.15 g of Ag2O is sealed in a 75.0-mL tube filled with 760 torrof N2 gas at 32 °C, and the tube…

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Q: A 2.00 L container holds 4.00 moles of O2 and 2.70 moles of He at 293K. What is the partial pressure…

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Q: The mass of 3 liter of a gas at 800 torr and 500 Kelvin is 1.25 gram s. Calculate the m…

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Q: In the average adult male, the residual volume (RV) of thelungs, the volume of air remaining after a…

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Q: If an ideal gas is allowed to expand from 2.00 L to 7.00 L at constant temperature, by what factor…

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Q: A piece of dry ice (solid carbon dioxide) with a mass of 5.50 gis placed in a 10.0-L vessel that…

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Q: F8.og offluorine aas and 5.0g of neon gas are injecied in to a 1.8 L vessel at a temperature of 59…

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Q: A 18.0 mg sample of an unknown gas is placed in a 750.0 mL flask at 85 0C and 1.20 atm. What is the…

A: Given data,Mass of gas=18.0mg=0.018gVolume=750mL=0.750LTemperature=85oC=85+273=358KPressure=1.2atm

Q: If a sample of Xenon gas occupies a volume of 31.0L at 17.0°C, at what temperature, in °C, will it…

A: Given: T1=17 oC (290 K) V1=31.0L V2=7 L. T2=?

Q: Consider the following reaction: C(s) + O2(g) -CO2(g) What volume of oxygen gas at 25 °C and 1.02…

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Q: in the tank equal 130.0 atm? (u) Wnat Would be the pressure NOUIU Be the pressure WInat of the gas,…

A: Given: The average cockroach runs at 0.08 km/hr in time t = 1hr. It consumed 0.8 mL of oxygen per…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.