At 741 torr and 44 oC, 7.10 g of a gas occupies a volume of 5.40 L. What is the molar mass of the gas in grams/mol? Just give the number with the correct rounding and significant figures. The assumption is the answer is in grams per mole.

Q: In an experiment, hydrogen sulfide gas is collected in a 1.25 L flask at 21 degrees celsius and 758…

A: Given, Volume  = 1.25 L Temperature = 21°C = 21+273 = 294 K Pressure = 758 torr Mass of H2S = ?

Q: At what temperature in oC does 0.505 moles of gas occupy a volume of 8.15 Liters at a pressure of…

A: According to ideal gas law's, ratio of product of Pressure and volume to the product of temperature…

Q: The volume of a gas is 250 mL at 720 torr and 25o C. If the pressure is held constant and the…

A: The new volume has to be given,

Q: A sample of a gas occupies a volume of 29.7 L at 13ºC and 784 torr. What will be the new volume if…

A: Given, A sample of a gas occupies a volume of 29.7 L at 13ºC and 784 torr. The new volume if the…

Q: How many moles of nitrogen are in a 2145 mL sample of the gas at 1500. torr and 120°C?

A: We have to calculate the moles of nitrogen gas.

Q: At 741 Torr and 44°C, 7.10 g of a gas occupies a volume of 5.40 L. What is the molar mass of the gas…

A: Given: Pressure is 741 torr Volume is 5.40 L Temperature is 44oC Mass is 7.10 g To find: Molar mass

Q: A gaseous sample of a compound has a gas density of 0.997 g/liter at 710.0 torr and 100.0 °C. What…

A:

Q: A 250.0 mL flask contains 0.200 g of a gas at 212 mmHg and 23oC, what is the molar mass of the gas?

A: Given:Volume = 250.0 mL = 0.250 L.Temperature = 23oC = 296 KPressure = 212 mmHg = 0.279 atm.Mass =…

Q: A gas is initially at 302 K, 839 torr, and occupies a volume of 4.29 L.  What volume will the gas…

A: We will use the concept of ideal gas equation here. From ideal gas equation we have a derived…

Q: Calculate the molecular weight (mass) of a gaseous element if 0.480 g of the gas occupies 367 mL at…

A: Given,  Mass of the element = 0.480 g  Volume, V = 367 mL = (367/1000) = 0.367 L  Pressure, P = 365…

Q: Calculate the density of argon gas at 23.0 oC and 784 torr.

A: Given, Temperature of Ar gas = 23.0oC = 296K. Pressure of Ar gas = 784torr.

Q: A container with a volume of 371 L contains how many moles of Oz at STP?

A: Given  Volume = 371 L  Number of mole of O2 = ?

Q: 1.00-L gas sample at 100.C and 650, torr contains 52.0% helium and 48.0% xenon by mass. What are the…

A: Total pressure = 650 torr

Q: Calculate the molar mass of a gas at 408 torr and 79°C if 206 ng occupies 0.206 µL. g/mol

A:

Q: 2.50 g sample of a certain gas occupies 0.875 L at 685 torr and 35°C determine the molar mass of the…

A: The mass of the particular chemical compound is determined using combined gas law. It is given by…

Q: A 240. mL sample of an unknown gas at 99C and 722 torr has a mass of 1.20 g. Calculate the molar…

A: Given,Temp= 99 degree Celsius.Pressure = 722 torrMass = 1.20gVolume = 240mL

Q: A sample of chlorine gas is confined in a 3.45−L container at 600 torr and 57.0°C. How many moles…

A:

Q: Calculate the molar mass of a gas with a density of 1.81 g/L at 27 oC and 735 torr.

A: Mass = m Molar mass = M Volume = V Density, d = 1.81 g/L Temperature = 27 ◦C or 300.15 K Pressure =…

Q: A sample of chlorine gas (Cl₂) is confined in a 5.0L container at 28 torr and 27°C. How many mols of…

A:

Q: A sample of He gas occupies a volume of 250.0 mL at 18.6°C in 1892 torr. What is the mass of the…

A: Ideal gas equation, Where, P=pressure, V=Volume, n =number of moles R=gas constant T=Temperature

Q: At what Kelvin temperature will 37.5 mol of Ar occupy a volume of 725 L at a pressure of 675 torr?

A:

Q: A sample of ideal gas at room temperature occupies a volume of 40.0 L at a pressure of 442 torr . If…

A:

Q: Calculate the molar mass of a gas at 377 torr and 58°C if 206 ng occupies 0.206 μL.

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

Q: How many moles are in a 412.6 mL sample of gas at 383.4 K and 744 torr?

A: We have to predict the moles of gas.

Q: A sample of gas occupies a volume of 384ml  at 60 Torr and 27ﾟC. What volume will occupy at STP?

A: The combined gas law states that the ratio of the product of the original pressure and volume of a…

Q: You have 110 mL Ar(g) at 14 °C and 735 Torr. How many moles of Ar(g) are present?

A:

Q: 250.0 ml of oxygen gas was collected over water at 24.5 C and 771 Torr. What is the volume of the…

A: Since the oxygen is collected over water, total pressure includes vapor pressure of water. From the…

Q: A sample of gas has a volume of 5.82 L at 27 Celsius and 800.0 torr. How many oxygen molecules does…

A: Given :-  Pressure of gas = 800.0 torr  Volume occupied by gas = 5.82 L  Temperature = 27oC   To be…

Q: A typical adult inhales 450 mL of air in any one breath. How many air particles are in a typical…

A: Given,The volume of air particle is 450 mL=0.450L (1mL=0.001L)The gas constant = 0.08206L atm /K…

Q: Calculate the molar mass of a gas at 388 torr and 45°C if 206 ng occupies 0.206μL.

A: The given data contains,   Pressure =388 torr  =51729.1 PaTemperature =45°C=318 Kd =206 ng0.206 μL=1…

Q: What is the volume of a gas in mL at STP if the gas changed conditions to  341 mL at 25.0 oC at 653…

A: According to ideal gas law, PV = nRT where P = pressure  V = volume n = moles of gas  R = gas…

Q: A sample of a gas occupies a volume of 29.7 L at 25 ºC and 735 torr. What will be the new volume if…

A: Initial volume of gas = V1 = 29.7 L Initial temperature T1 = 25 oC + 273 = 298 K Initial pressure of…

Q: A sample of gas has a mass of 3.85 g and has a volume of 955.0 mL at 831 torr and 23.0°C. What is…

A: Solution:- Given => mass of gas = 3.85 g                                  volume of gas = 955.0…

Q: At a pressure of 250 torr, a gas occupies 8.2 L. If the pressure is lowered to 113 torr, what would…

A: Given     Initial Pressure  ( P1 )    = 250 torr     Initial Volume   ( V1  )   = 8.2 Liter    Final…

Q: How many grams of O2 gas occupy 19.0 L at STP? Enter your answer in the provided box.

A:

Q: A sample of nitrogen gas is confined to a 27.5-L container at 635 torr and 37.0°C. How many moles of…

A: Volume of gas (V) = 27.5 L Pressure of Gas (P) = 635 torr Temperature of gas (T) = 37 ℃ = (37 +…

Q: At a temperature of __________°C, 0.444 mol of CO gas occupies 11.8L at 839 torr.

A: Given, Temperature (T) = ? °C Moles of CO gas (n) = 0.444 mol Volume of gas (V) = 11.8 L Note: 760…

Q: Enter your answer in the provided box. Calculate the molar mass of a gas at 483 torr and 50°C if 206…

A: Given that : Pressure (P) = 483 torr = 0.64 atm    (1 atm = 760 torr) Temperature (T) = 50°C = 323 K…

Q: A gas at 511 torr and 1.8 liters is allowed to expand to 4.2 liters. What is the final pressure of…

A: Charles's law: P1V1=P2V2 (at constant temperature and amount)

Q: A 15.0g sample of gas occupies 23.2 L at STP. What is the molecular weight of this gas?

A:

Q: A sample of gas with a mass of 1.020 g occupies a volume of 762 mL at 0 °C and 1.00 atm (STP). What…

A: The ideal gas equation is written below.PV = nRT         ….. (1)                Here, P is the…

Q: What is the molar mass of a gas if 0.282 g of the gas occupies a volume of 250 mL at a temperature…

A:

Q: A gas at 527 torr and 1.1 liters is allowed to expand to 4.5 liters. What is the final pressure of…

A: Given, initial pressure =527 torr initial volume of gas=1.1 L final  volume of gas=4.5 Lwe are asked…

Q: At a pressure of 740 Torr, a sample of gas occupies 5.00 L. Calculate the volume of the sample if…

A: according to  Boyles law:- the volume of a gas at constant temperature varies inversely with the…

Q: A sample of ideal gas at room temperature occupies a volume of 38.0 L at a pressure of 572 torr . If…

A: Given data is as follows: The initial volume of the gas V1= 38.0 L The initial pressure of the gas…

Q: Calculate the molar mass of a gas at 487 torr and 64°C if 206 ng occupies 0.206μL.

A: Ideal Gas Law :-  PV = nRT  P is the pressure of gas  V is the volume occupied by gas n is the…

Q: A gas at 537 torr and 1.9 liters is allowed to expand to 4.7 liters.  What is the final pressure of…

A: Boyle’s law is a gas law which states that the pressure exerted by a gas (of a given mass, kept at a…

Q: A 5.0L container is pressurized with 1.25 atm of hydrogen gas, 1.75 atm of oxygen, and 0.90 atm of…

A: Since, Total pressure of the gas is the sum of partial pressure of the gas present in the container.…

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.