At sea level, where the pressure was 104 kPa and the temperature 21.1 °c. a certain mass of air occupied 2.0 m3. To what volume will the region expand when it has risen to an altitude where the pressure and temperature are (a) 52 kPa, -5.0 oc. (b) 880 Pa, -52.0 °c?

Q: A vessel of volume 11.2 L contains 2.0 mol of H2(g) and 1.0 mol of N2(g) at 273.15K. Calculate the…

A: A vessel of volume 11.2 L contains 2.0 mol of H2(g) and 1.0 mol of N2(g) at 273.15K. The total…

Q: What volume would 1 mole of an ideal gas occupy at 250C and 101.325 kPa?

A: The ideal gas equation - P V = n R T here,  P is the pressure of the ideal gas in atmospheres. V is…

Q: Q4// A-Aclosed container of volume 0.02m contains a mixture of neon and argon at tempreture 27°c and…

A: Volume = 0.02 m3  Pressure = 1 × 105 Nm-2 Temperature = 27°C = 27 + 273 = 300 K  Total mass of gases…

Q: Suppose a barometer were designed using water (with adensity of 1.00 g cm-3) rather than mercury as…

A: Relation between pressure and density is, P= d.g.h Where, P=pressure, d=density, g=gravitational…

Q: A gas at 7.75 x 10 Pa and 17°C occupies a volume of 850. cm. At what temperature, in degrees…

A: Initial pressure = P1= 7.75 * 104 PaInitial Temperature = T1  = 17°C = (17 +273.15 )K =290.15…

Q: What is the value of the compressibility factor of an ideal gas with molar volume that is equal to…

A: Given:  Pressure = 1 atm  Temperature  = 300 K  Molar Volume (Vm) = 0.50 L/mol  R = 0.0821 atm L…

Q: Calculate the partial pressure in [bar] of N; in air consisting of N3, Oz, and Ar assuming that the…

A: Answer: This question is based on the density form of ideal gas equation which is shown below:…

Q: 50 cm3 of hydrogen gas enclosed in a vessel maintained under a pressure of 1400 Tor, is allowed to…

A: Boyle's law states that at constant temperature pressure of the gas is inversely proportional to the…

Q: Assume that a spherical balloon is filled with Hydrogen gas, H2, until its radius is 1.00 m at 25oC…

A: We are given  radius of ballon =1 mtemperature =25°CPressure =101 kPa

Q: What is the molar mass of a gas if a 0.227 g sample occupies 135 mL at 25 *C and 68.5 kPa? *

A: Ans is 60.81g/mol

Q: What is the molar mass of a gas found to have a density of 0.841 g/L at 415 K and 96.7 kPa?

A: Interpretation- molar mass of gas Concept introduction- Ideal gas equation is, PV= nRT……… (1)…

Q: What is the density of oxygen gas at 25 degree C and 120 kPa?

A:

Q: To what temperature, in oC ,  must a 20.2 g sample of hydrogen gas be heated to, at 136 kPa, to…

A:

Q: Lithium  metal reacts with molecular  oxygen  gas to form  lithium   oxide . A closed container of…

A: kkThe given data contains, Pressure = 8.12×105Pa   ( 1 atm =105Pa )Pressure =8.12 atmVolume =4…

Q: In an experiment to measure the molar mass of a gas, 250 cm3 of the gas was confined in a glass…

A: It is given that,

Q: What is the height of a column of liquid in a barometer if the density of the liquid is 1.478 g/mL…

A: Formula of pressure: P = hdg Where h = height, d = density, g = acceleration due to gravity Given,…

Q: The pressure inside a hydrogen-filled container was 213 kPa at 21 °C. What would the pressure be if…

A: Given: Initial pressure       = 213 kPa Initial temperature = 21 oC Final temperature  = 99 oC

Q: Q4// A-Aclosed container of volume 0.02m° contains a mixture of neon and argon at tempreture 27°c…

A: Given : Volume = 0.02 m3 Temperature = 27°C Pressure = 1×105 Nm-2 Total mass = 28 g To find : Masses…

Q: What volume is occupied by 0.250 grams of O2 measured at 25.0oC and 100.66 kPa?

A:

Q: (5) Using the data in Table 1C.3 (from the textbook), calculate the pressure that 2.500 moles of…

A:

Q: How many grams of zinc must be added to a 100-milliliter solution of 6.00 M HCl(aq) to produce 219…

A: Here, we have to calculate the mass of zinc that must be added to a 100-milliliter solution of 6.00…

Q: A containing 138 cm ^ 3 of hydrogen was collected under a pressure of 25.6 kPa What pressure would…

A:

Q: A gas at 77.5 kPa and 17°C occupies a volume of 850cm^3, at what temperature in degrees Celsius…

A: The question is based on the concept of ideal gas equation. we have to use combined gas law equation…

Q: At what temperature will a molecule of uranium hexafluoride, the densest gas known, have the same…

A: Formula for root mean square speed of Molecule at Kelvin temperature is ; Where , T = temperature…

Q: A sample of neon of mass 425 mg occupies 6.00 dm3 at 77 K. What pressure does it exert?

A: Ideal gas equation:                                                      PV = nRT where, P=…

Q: The root-mean-square speed of CO at 121.7 °C is m/s.

A: We know the root mean square(r.m.s.) speed of a gaseous molecule is given as-

Q: What is the density of N2O5 under standard temperature and pressure conditions, in g/L?

A: At standard pressure and temperature, volume of one mole of gas is 22.4 L.

Q: At 273 K and 1 atm pressure, 1 mol of an ideal gas occupies 22.4 L. In whichparts of the atmosphere…

A: Molar volume = 22.4 L

Q: At what pressure does the mean free path of argon at 25 °c become comparable to the diameter of a…

A: T = 298 K λ= 1.0 dm3 = 0.1 m σ = 0.36 nm2 = 0.36 x 10-18 m2 λ=Rt2σP P=Rt2σλ

Q: On a single plot, qualitatively sketch the distribution ofmolecular speeds for (a) Kr(g) at -50 °C,…

A: The average velocity and root mean square velocity of gas molecules for a gas of molar mass M at…

Q: In an N2 atmosphere, what temperature would a hot air balloon need to be to achieve neutral buoyancy…

A: Answer  Given that The buoyant force is equal to the weight of the displaced air

Q: A gas mixture contains 0.275 kgmol of HCl, 0.337 kgmol of N2 and 0.089 kgmol of O2, 
Calculate: a.…

A:

Q: A 0.479 g sample of nitrogen, oxygen or neon gas occupies a volume of 265 mL at 157 kPa and 20°C.…

A:

Q: 1.1(a) (a) Could 131 g of xenon gas in a vessel of volume 1.0 dm³ exert a pressure of 20 atm at 25°C…

A:

Q: Could 25 g of argon gas in a vessel of volume 1.5 dm3 exert a pressure of 2.0 bar at 30 °C if it…

A: The mass of the argon gas = 25 g The volume of the vessel = 1.5 dm3 The temperature of the gas = 30…

Q: Introduce the compressibility factor, which accounts for the deviation of real gases from ideal-gas…

A: Gas laws give the relation between pressure, temperature, and volume.

Q: Under which conditions would you expect argon to behave ideally? In 150 K, 100 kPa or in 400 K, 100…

A: Generally a gas behave like ideal gas when intermolecular forces are less significant compare to…

Q: A laboratory vacuum pump can generate a vacuum of about 1 nTorr at 27°C. Assuming that air consists…

A: Given data: Temperature (T) = 27o C = 273 + 27 = 300K Diameter (d) = 395 pm = 395 x 10-12 m Pressure…

Q: 2. There is 1250. cm³ of chlorine gas at 25°C and 90,000 Pascals, what volume will the same gas…

A: Combined gas equation is the combination of Boyle's law, Charles law and Gay lussacs law.

Q: In a chamber, the density of O2, N2, N, O, and NO is 0.01, 0.015, 0.018, 0.007, and 0.02 kg/m³…

A: Given,Density of O2=0.01kg/m3Density of N2=0.015kg/m3Density of N=0.018kg/m3Density of…

Q: 1. (a) Could 131 g of xenon gas in a vessel of volume 1.0 dm 3 exert a pressure of 20 atm at 25°C if…

A:

Q: what would be the pressure of the gas that starts at 115 kpa and 25 degrees celcuis that is heated…

A:

Q: 5.) The density of a gaseous compound was found to be 1.23 kg m3 at 330 K and 20 kPa. What is the…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: To what temperature must a sample of helium gas be cooled from 22.2 °c to reduce its volume from…

A: 1.00 dm3 = 1000 cm3 By Charles law : T2T1 =V2V1  T2(22.2 + 273.15) = 100 cm31000 cm3   T2 = 29.535 K…

Q: Calculate the root-mean-square speed of molecular chlorine in m/s at 25.0°C.

A: The room-mean-square-velocity: The root-mean-square (RMS or rms) is defined as the square root of…

Q: A 1.0 dm3 glass bulb contains 1.0 x 1023 H2 molecules. If the pressure exerted by the gas is 100…

A: Given information,        A 1.0 dm3 glass bulb contains 1.0 x 1023 H2 molecules and the pressure…

Q: 1. A chemist collects 372 cm³ of gas over water at 90°C and 111.0 kPa. What volume would the dry gas…

A: Note : As per our guidelines we are supposed to answer only one question. Please repost the…

Q: A gas at constant temperature occupies a volume of 2.40 dm3 and exerts a pressure of 110 kPa.  What…

A:

Q: What is the mass of air contained in a room 6 m × 10 m × 4 m if the pressure is 100 kPa and the…

A: The volume of the room is equal to the volume of the cuboid. Volume of room = Volume of cuboidVolume…

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.