In an N2 atmosphere, what temperature would a hot air balloon need to be to achieve neutral buoyancy if the outside density was 1.12g/L, the balloon was 115m3 , the pressure was 759torr and the material mass was 14.5kg?

Q: A sample of N2 occupies 400 ml at 100°C. At what temperature will it occupy 200 ml, if the pressure…

A: Data given,  Initial volume of N2 gas, V1 = 400 mL  Initial temperature of N2 gas, T1 = 100 °C =…

Q: 25 L  of a gas were collected over water when the barometer read 590.0 mmHg  and the  temperature…

A: The gaseous state is the state of matter with least intermolecular force of attraction between…

Q: A vessel with a volume of 26.9 L contains 2.80 g of nitrogen gas, 0.605 g of hydrogen gas, and 79.9…

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Q: 2. A balloon is inflated to a volume of 2.50 L in a classroom in which the recorded temperature is…

A: Given that initial volume and initial temperature, and also final temperature and asked final…

Q: On a certain day, a laboratory barometer indicates that the atmospheric pressure is764.7 torr. A…

A: The required expression is given below.

Q: How many moles of nitrogen occupy 52.07 L at 119.09 kPa and 62.48 oC?

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Q: Suppose the O, gas evolved by a certain chemical reaction taking place at 50.0 Cis collected over…

A: Given: Temperature = 50oC Volume of gas collected in the collection tube = 118 mL To determine: Mass…

Q: Chlorofluorocarbons (CFC's) are gases that were formerly widely used in aerosols and refrigerators…

A: Given: Mass of CFC = 2.50 g. Temperature = 22 oC Pressure = 1.02 atm. And volume of flask = 500 mL =…

Q: A sample of phosphorus that weighs 3.243 × 10−2 g exerts a pressure of 31.89 kPa in a 56.0-mL bulb…

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Q: A balloon has a pressure of 137 kPa and a volume of 93L. If the temperature is held constant, what…

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Q: [3] A mixture of 10.00 g of N2 and 10.00 g of Ar is placed in a 1.00 1 container at 25°C. What is…

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Q: Balloon A contains neon (MM=20.2 g mol-1) at 300 K. If balloon B contains oxygen (MM=32.0 g mol-1),…

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Q: Pantothenic acid is a vitamin. Using the Dumas method, you find that a sample weighing 61.6 mg gives…

A: Given information,       A sample weighing 61.6 mg gives 3.30 mL of nitrogen gas at 23°C and 785…

Q: What volume does 0.118 mol of helium gas at a pressure of0.97 atm and a temperature of 305 K occupy?…

A: For He gas : Ideal gas equation : PV = nRT 0.97 x V = 0.118 x 0.0821 x 305  V = 3.046 L For Ar gas :…

Q: A hyperbaric chamber has a volume of 200 L. How many grams of O2 are needed to fill the chamber at…

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Q: At what temperature (in K) will 35.40 grams of oxygen gas occupy 14.00 L at 681.60 mmHg?

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Q: A sample of air contains 78.08% nitrogen, 20.94% oxygen,0.05% carbon dioxide, and 0.93% argon, by…

A: Given information The composition of gases in the air by volume is:  Nitrogen = 78.08 % Oxygen =…

Q: hat would the volume of the gas be at a pressure of 65.0 kPa?

A: According to the Boyle's law, if two gases are kept under same temperature having equal moles, the…

Q: 2. A sample of oxygen occupies 10 L ,pressure of 790 torr (105 kPa ).At what pressure occupies 13.4…

A: The correct answer is given below

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

A: Let the mean free path be ƛ, temperature be T, Pressure be P and diameter be d. At constant…

Q: 5. A balloon used for atmospheric research has a volume of 1.0 x 106 L. Assume that the balloon is…

A: The combined gas law relates "before and after" atmospheric conditions of a gas.  The volume of…

Q: A 0.200-g sample of cobalt metal reacted with hydrochloric acid according to the following balanced…

A: The given reaction is: Co (s) + 2HCl (aq) → CoCl2 (aq) + H2 (g) The molar mass of Co = 59g/mol Molar…

Q: If 10.00 mol of an ideal gas were confined to 22.41 L at 0.0 °C, it would exert a pressure of 10.00…

A: The value of the universal gas constant can be exactly taken from the calculation of the ideal gas…

Q: What pressure is exerted by a mixture of 1.30  g of H2 and 6.300  g of N2 at 273°C in a 10.0 L…

A: PV = nRT Where, P = pressure of gas in atm V = volume in L n = number of moles of gases R = gas…

Q: Pantothenic acid is a vitamin. Using the Dumas method, you find that a sample weighing 81.6 mg gives…

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Q: bacterial culture isolated from sewage produced 57.5 mL of methane, CH4, at 37°C and 752 mmHg. That…

A: For ideal gas equation of state is : PV = nRT  Or, n = PV/RT ....(1)  Given that : P = 752 mmHg =…

Q: What volume must a balloon have to hold 6.20 kg of H2 for an ascent from sea level to an elevation…

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Q: 6. Determine the total pressure exerted by a mixture of 2.00 g hydrogen gas and 8.00 g of nitrogen…

A: Dalton's Law of partial pressure: The total pressure exerted by a mixture of gas is equal to the sum…

Q: At 1450. mmHg and 286 K, a skin diver exhales a 208-mLbubble of air that is 77% N₂, 17% O₂, and 6.0%…

A: Pressure of air in bubble (P1) = 1450 mmHg Temperature of air (T1) = 286K Volume of air in bubble (V…

Q: What mass of butane, in g, will be needed to fill a 3.12 L container to a pressure of 858 torr at a…

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Q: To what temperature must 0.588 moles of NH3 gas have to be heated in a 15.0 L container in order for…

A: We are authorized to answer one question at a time, since you have not mentioned which question you…

Q: A meteorological balloon contains 206 L He at 26.6oC and 733 mm Hg. If the volume of the balloon can…

A: Initial volume = 206 L  Initial temperature = 26.6 °C ..Or  because  °C + 273 = k   ..so, 26.6 °C +…

Q: At what pressure does 5 grams of H2 occupy a volume of 50L at a pressure of 1.01atm?

A: Welcome to bartleby !

Q: 5. A certain mass of oxygen was collected over water when potassium chlorate was decomposed by…

A: When a gas is collected over water some water vapors are also present along with the gas. In such…

Q: A sample of nitrogen occupies 9.5 liters at 32 oC and 85.7 kPa. What would be the volume at 20 oC…

A: We can use the gas equation to calculate the volume of the gas at a different temperature and…

Q: What pressure (in atm) is exerted by a mixture of 1.00  g of H2 and 8.500  g of N2 at 273°C in a…

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Q: What is the total pressure exerted by a gaseous mixture that consists of 1.00 g of hydrogen and 8.00…

A: Mass of Hydrogen gas = 1 g Mass of neon gas = 8 g Volume of container = 2.80 L T = 44.10+ 273.15 =…

Q: A sample of gas at 912.5 mmHg and 24.66 °C is heated to a temperature of 143.67 °C. What is the new…

A: Consider the given information is as follows; Initial pressure P1=912.5 mmHg =912.5 × 0.133322 kPa =…

Q: "A mixture of gases contains 0.745 moles of N2, 0.315 moles of 02, and 0.153 moles of CO2. What will…

A: Given data is as follows: The number of moles of N2 = 0.745 moles The number of moles of O2 = 0.315…

Q: A balloon is inflated to a volume of 8.5 Lon a day when the atmospheric pressure is 1.013 har The…

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Q: The root mean square velocity (ums) in (m/s) of NO molecules in a sample of NO gas at 27.0 C is?…

A: Given: Temperature= 27°C= 27+ 273= 300K Molar mass of NO= 30.0 g/mol= 0.030 kg/mol To find: The root…

Q: A 0.0733 L balloon contains 0.584 grams of iodine gas, I2, at a pressure of 93.6 kPa. What is the…

A: Given that,  Volume of balloon V = 0.0733 L Weight of iodine gas in balloon w = 0.584 g Pressure of…

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…

A: The initial temperature of the tube is 32oC. The initial pressure of the tube is 760 torr (=1atm)…

Q: Boyle’s apprentice finds that the air trapped in a J tube occupies 24.8 cm³ at 1.12 atm. By adding…

A: Boyle law: According to Boyle law Absolute pressure of gas is inversely proportional to it's…

Q: 6. A certain mass of oxygen was collected over water when potassium chlorate was decomposed by…

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Q: if 2.50ml of NO2 gas eompletely conveted to N2O4 gas under the same conditions what volume will the…

A: All matter can be classified as solid, liquid and gases mainly. In these physical states of matter,…

Q: A hyperbaric chamber has a volume of 1450 LL. How many kilograms of O2O2 gas are needed to give an…

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Q: What pressure is exerted by 129.5g of CH4 in a 0.3900 L steel container at 215.7k?

A: If a gas behaves like an ideal gas, it will follow the ideal gas equation. It gives the relationship…

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.