ture of the atmosphere on Mars can be as high as 27°C at the equator at noon, and the atmospheric pressure is about 8.0 mm Hg. If a spacecraft could collect 11. M3 of this atmosphere, compress it to a small volume, and send it back to Earth, how many moles would the sample co

Q: oxygen can be generated in the laboratory by heating potassium chlorate until it it decomposes. what…

A: The potassium chlorate is heated in laboratory to generate oxygen.   2KClO3 (s)→2KCl (s) + 3O2 (g)…

Q: The partial pressure of oxygen in a mixture of oxygen andhydrogen is 0.200 atm, and that of hydrogen…

A: The ideal gas equation is given by,                                                PV = nRT Where, P…

Q: A certain gas has a molar mass of 45.88 g/mol. What will be its density at STP? O 2.86 g/L O 2.24…

A: • The values provided in the question are:-  i) Molar mass of a certain gas, M = 45.88 g/mol…

Q: A gas cylinder contains 1.0 mol of helium at a temperature of 20°C. A second identical cylinder…

A: Average velocity of gas =

Q: In a series of experiments, the U.S. Navy developed an undersea habitat. In one experiment, the mole…

A: Given that, Habitat contains 3 gases. Mole % of each gas is as follows:   Mole % of He gas = 79.0%…

Q: Oxygen gas can be prepared by heating potassium chlorate according to the following equation:…

A: Vapor pressure of water = 23.8 mm Hg Pressure of wet gas = 757 mm Hg Temperature = 25 °C = 25 + 273…

Q: A 4.00 g sample of a mixture of BaO and CaO is placed in a 1.00 L vessel containing CO2 at a…

A: First we have to calculate the reacted pressure of CO2 gas in the given reaction:-The initial…

Q: The Haber Process synthesizes ammonia at elevated temperatures and pressures. Suppose you combine…

A:

Q: 26. An ideal gas occupies volume V at a temperature of 100°C. Up to how much will the volume of this…

A:

Q: An ideal gas originally at 0.85 atm and 65°C was allowed to expand. until its final volume,…

A: Ideal gas law ,   Ideal gas law state the relation between the pressure, temperature, volume and…

Q: What is the molar mass of a gas ?whose density at STP is 3.74 g/L g/mol 83.8 .A g/mol 5.99 .B g/mol…

A: STP( standard temperature and pressure) at STP the 1Mole of  a gas attains 22.4 Liter volume.   So,…

Q: A person accidentally swallows a drop of liquid oxygen, O2(l), which has a density of 1.149 g/mL.…

A: To calculate the volume of oxygen gas in the stomach, first of all, we calculate the mass of the…

Q: The partial pressure of argon in the atmosphere is 0.0083 atm. What is the argon pressure at 55 km…

A: Given that, for argon gas, the partial pressure in the atmosphere is p0 = 0.0083 atm. We have to…

Q: Zinc metal reacts with excess hydrochloric acid to produce hydrogen gas according to the following…

A:

Q: A sample of 250.9 mL of wet nitrogen gas was collected over water at a total pressure of 753 torr…

A: As per Raoult’s Law,Total Pressure = Partial vapour pressure of water + Partial vapour pressure of…

Q: Composition of Dry Air at Sea Level Gas Mole% N2 78.084 O2 20.946 Ar   0.934 CO2   0.0345 Ne…

A: Given: Mole % of CO2 in air = 0.0345 % Temperature = 10 oC Volume = 850 mL = 0.850 L…

Q: if 19.28 L of CO2 are collected at 52 celceus, at what temperature would the volume of this gas be…

A:

Q: How many miles of ozone occupy a volume of 3.36 L at STP?

A:

Q: If a 1.79-g sample of a gas occupies 1.0 L at STP, what is the molar mass of the gas at 125 C? 40.1…

A: Given data: The weight of the sample is 1.79 g. Temperature =(273+125)=398 K. Volume=1 L Pressure=1…

Q: Components of Air Mole Fraction Nitrogen 0.781 Окудеn 0.209 Argon 0.010 What is the partial pressure…

A: In a mixture of different gases having total pressure PT, the partial pressure of each gas Pi is…

Q: 2. A sample of gas occupies a volume of 10.5 L at 700 mmHg and 100°C. What would the new pressure…

A:

Q: what is the volume of O2 in mL and L?   Temperature of O2(°C) to the nearest whole degree: 24…

A: Temperature = 24°C = 297K Pressure = 732 mmHg= 0.963 atm R= gas constant = 0.0821Latm/molK Mass of…

Q: A sample of a certain gas has a volume of 452 mL at 711 mm Hg and 26 °C. What would be the volume of…

A: Given: Volume V1= 452 mL Pressure P1 = 711mmHg= 711/760= 0.935 atm Temperature T1 = 26oC= 26+ 273 =…

Q: How many moles of neon gas occupy a volume of 14.3 L at STP conditions?

A: Approximately 0.64 mole

Q: Sodium metal reacts with water to produce hydrogen gas according to the following equation:2Na(s) +…

A:

Q: A new greenhouse gas has been discovered. Answer the following questions to characterize this new…

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: A sample of 222.9 mL of wet nitrogen gas was collected over water at a total pressure of 785 torr…

A:

Q: The Haber Process synthesizes ammonia at elevated temperatures and pressures. Suppose you combine…

A:

Q: Oxygen gas can be prepared by heating potassium chlorate according to the following equation…

A: The number of moles of oxygen is calculated as,

Q: Oxygen gas can be prepared by heating potassium chlorate according to the following…

A:

Q: The Haber Process synthesizes ammonia at elevated temperatures and pressures. Suppose you combine…

A: According to the reaction  N₂ (g) + 3 H₂ (g) → 2 NH₃ (g) we can say the 1 L of N2 will react with 3…

Q: Aerosol cans carry clear warnings against incineration because of the high pressures that can…

A: Given information: P1 = 760 mmHg T1 = 30∘C = 30+273 = 303 K T2 = 1175∘C = 1175+273 = 1448 K

Q: The highest atmospheric pressure ever nmeasured is 814.3 mm Hg, recorded in Mongolia in December,…

A: The pressure in mm Hg has to be converted into atm unit. In order to do this, the conversion factor…

Q: An ideal gas originally at 0.85 atm and 62°C was allowed to expand until its final volume, pressure,…

A: P1V1/T1 = P2V2/T2 V1 = P2V2T1/P1T2

Q: The atmospheric pressure on a particular day is 726 mmHg. Given that the mole fraction of N2 in air…

A: Answer: 567.006 mmHg

Q: The Haber Process synthesizes ammonia at elevated temperatures and pressures. Suppose you combine…

A: At STP the volume of one mole of gas is 22.4 L. Then, at STP, 22.4L of N2 contains 1 mole of N2 .…

Q: What volume would 2.31×10232.31×1023 molecules of an ideal gas occupy at STP?

A: According to ideal gas law PV = nRT where P = pressure = 1 atm at STP V = volume of gas n = moles of…

Q: The Haber Process synthesizes ammonia at elevated temperatures and pressures. Suppose you combine…

A: Given, Volume of N2 at STP = 1580 LVolume of H2 at STP = 4240 LWe know that, at STP 1 mole of a gas…

Q: 1. If a gas at 0.671 atm pressure in a volume of 0.407 L is compressed to 0.208 L, what is the new…

A:

Q: Oxygen gas can be prepared by heating potassium chlorate according to the following equation: 2KC10,…

A: we have to calculate the number of moles of KClO3

Q: The partial pressure of oxygen in inhaled air is PO2=159 mmHg and its partial pressure in exhaled…

A: To calculate the rate of oxygen transfer from the atmosphere while breathing, we initially have to…

Q: Aerosol cans carry clear warnings against incineration because of the high pressures that can…

A:

Q: The Haber Process synthesizes ammonia at elevated temperatures and pressures. Suppose you combine…

A: N₂ (g) + 3 H₂ (g) → 2 NH₃ (g)  According to the above reaction 1 mole of Nitrogen will react with 3…

Q: What do you expect to happen to the  volume of a gas it its temperature is doubled while the…

A: Since you have posted a question with multiple subparts, we will solve the first three subparts for…

Q: A substance containing only carbon and hydrogen is analyzed and found to contain 85.7% carbon by…

A: Density of compound at STP = 1.87 g/Li.e. 1 L of compound weighs 1.87 g1 mol of compound at STP =…

Q: Zinc metal reacts with excess hydrochloric acid to produce hydrogen gas according to the following…

A:

Q: Substance air (78 % N2, 21 % O2) CO2 (g) Density of gas at STP 1.279 g/L 1.977 g/L 1. The table…

A: More is the density, the more it displace others from the vessel.

Q: Al(s) + 2NaOH(aq) + 6H2O(1)2NAAI(OH)4(aq) + 3H2(g) he product gas, H,, is collected over water at a…

A:

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.