What is the molar mass of a gas if 150.0 mL has a mass of 0.922 g at 99 ° and 107.0 kPa? *

Q: If a sample of gas at 35.4℃ and 108.4kPa is heated until the pressure is 297.1kPa and the volume is…

A: PV=nRT is the ideal gas equation. Here , P= Pressure (in Pa) ; V = Volume (in m3) ; n= No. of moles…

Q: You have a sample of an unknown gaseous compound which has a density of 8.51 g/L at 55.0 °C and 88.6…

A: Given: Density of gas = 8.51 g/L Temperature = 55.0oC = 55+273=328.0 K Pressure = 88.6 kPa

Q: What is the molar mass of 1.87 g of a gas that occupies 1.3 gallons at 135ﾟF and 8.9 psi?

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Q: A cylinder with a moveable piston contains 0.521 mol of gas and has a volume of 270 mL. What will…

A: Answer: This question is based on ideal gas equation which is shown below: PV=nRT Here: P=pressure…

Q: A gas has a volume of 2.73 L at -3.7oC and 139.5 kPa. At what temperature would the gas occupy 1.7 L…

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Q: If 0.875 L of gas at 286 K expands to 1.731L at 311K and 1.54 atm, what was its inital pressure?

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

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Q: What is the density of carbon dioxide gas at -25.2°C and 98.0 kPa?

A: It is given that:Pressure (P) = 98.0 kPaTemperature = -25.2 °C

Q: Calculate the molar mass of a gas if 3.30 g of the gas occupies 660. mL at 735 mm Hg and 27⁰C.

A: Introduction: Ideal gas exits only theoretically. The gases which obeys Boyle's law, Charles's law,…

Q: A scientist isolates 2.366 g of a gas. The sample occupies a volume of 800.0 mL at 78.00 °C and…

A:

Q: A 2.50 g sample of an unknown gas occupies 875 mL at 685 mm Hg and 35 degrees Celcius. What is the…

A: Given: mass of gas = 2.50 g Volume of gas = 875 mL = 0.875 L pressure of gas = 685 mmHg = 0.9013 atm…

Q: A 12.5g gas sample occupies 663ml at 25.0c and 1.00 atm what is the molar mass of the gas

A: Ideal gas law can be written as PV = nRT Where, P = pressure V = volume n = moles of gas R = Gas…

Q: What is the molar mass of 1.87 g of a gas that occupies 1.3 gallons at 135 °F and 8.9 psi?

A: Given data is as follows: The mass of the gas = 1.87 g The volume of the gas = 1.3 gallons The…

Q: A sample of gas occupies 0.575 L at 1.5 atm and 125 °C. At what pressure will its volume be 300 ml…

A: Here, P1 = 1.5 atm; V1 = 0.575 L; T1 = (273 + 125) K = 398 K P2 = unknown; V2 = 300 mL and T2 = 295…

Q: What is the molar mass of a gas if .427 g of the gas occupies a volume of 125 mL at 20.0C and 980…

A: Given data mass of gas : m = 427 g Volume of gas : V = 125 mL = 0.125 L Pressure of gas : P = 980…

Q: How many moles of chlorine gas at 120.0 °C and 33.3 atm would occupy a vessel of 14.5 L?

A: To solve this problem we will use Ideal gas equation which is given below as PV = nRT  Where,  P=…

Q: 4. Calculate the mass of a 4.5 L balloon filled with chlorine gas at 67.0°C and 103.2 kPa?

A: The pressure, volume, temperature and number of moles of a an ideal gas is related to each other by…

Q: What quantity in moles of chlorine gas at 120.0 degrees C and 33.3 atm would occupy a vessel of 35.0…

A: Given, Pressure (P) = 33.3 atm Volume (V) = 35.0 L Temperature (T) = 120.0 °C = (120 + 273.15) K =…

Q: How many grams of methane are in a 1,497 mL tank at 115.3 degrees C and 688 kPa?

A: Given data,   Methane gas (CH4) in tank  Volume (V) = 1497 mL  = 1.497 L Temperature (T) = 115.3 °C…

Q: What is the molar mass of a gas if 150.0 mL has a mass of 0.922 g at 99 ºC and 107.0 kPa?

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

Q: A 0.593g sample of gas has a volume of 115 mL at 53.2 ∘C and 94.0 kPa. What is the molar mass of…

A: Use ideal gas equation:

Q: Aluminum reacts with excess hydrochloric acid to form aqueous aluminum chloride and 35.8 mL of…

A: Given :-  Al + HCl → AlCl3 + H2  Volume of H2 = 35.8 mL  Temperature = 27°C  Pressure = 751 mm Hg…

Q: In alcohol fermentation, yeast converts glucose to ethanol and carbon dioxide: C6H12O6(s) ⟶…

A: Reactio equation : C6H12O6(s) →             2C2H5OH(l) + 2CO2(g)Mass of glucose reacts = 5.97…

Q: How many moles of helium gas occupy 13.9 LL at 103 KK and 2.30 atmatm?

A: According to ideal gas law  PV = nRT Where volume of n mols of gas at temperature T and pressure P =…

Q: 1)If a gas occupies 5 L at 298 K, what temperature is needed to reduce the volume to 2 L if the…

A: Given, a gas occupies 5 L at 298 K i.e.initial volume =5 Linitial temperature =298 Kfinal volume =2…

Q: How many moles of gas are there in a 0.75 L balloon if the temperature of the balloon is 521 K and…

A: An ideal gas is the hypothetical gas composed of many randomly moving point particles that are not…

Q: What is the temperature (in °C) of an 11.8 L sample of carbon monoxide, CO, at 747 torr if it…

A: Given: V1 = 11.8 L V2 = 12.9 L T2 = 57.0oC T1 = ?

Q: Calculate the density of CH4(g) at 120 °C and 0.600 atm

A: The required relationship is given below.

Q: For a gas sample whose total pressure is 740 torr, what are the partial pressures if the moles of…

A: Given Data : Moles of N2 = 1.3 mol Moles of O2 = 0.33 mol Moles of Ar = 0.061 mol

Q: To prevent a condition called the “bends,” deep-sea divers breathe a mixture containing, in mole…

A: Assuming we have total 100 moles  => moles of oxygen = 10 % of 100 = 10 moles moles of nitrogen =…

Q: How many moles of chlorine gas at 120.0 °C and 33.3 atm would occupy a vessel of 38.5 L?

A:

Q: A syringe initially holds a sample of gas with a volume of 205 mL at 305 K and 1.88atm. To what…

A: Given, Initial volume = 205mL. Initial temperature = 305K. Initial pressure = 1.88atm. Final volume…

Q: 7. At what temperature does 456 mL of gas exist if it expands to 3.4 L at 65.0 °C?

A: The temperature and volume are directly proportional to each other.

Q: The weight of 151 ml of a certain vapor at 68.0 ºC and 768 mm is 1.384 grams.  What is the molecular…

A: Concept used: An ideal gas also called a perfect gas in which molecules are point particles, i.e.,…

Q: A 1.007 g sample of an unknown gas exerts a pressure of 715 mmHg in a 452 mL container at 23 ̊C.…

A: Given :  Mass of gas = 1.007 g  Pressure = 715 mm Hg  Volume = 452 mL  Temperature = 23°C  To…

Q: A scientist isolates a sample of gas that occupies a volume of 678.1 mL at 104.3 kPa and 39.27 °C.…

A: Inert gas equation: -  PV=nRT (104.3*0.01atm)*(0.678 L) = n * 0.0821*(39.27 +273.15) n = 0.0275…

Q: How many moles of an ideal gas are in a 1,709.5 mL container at 34.1°C and 700.7 torr?

A: Volume = 1709.5 ml   ....Or  because 1 L = 1000 ml    ...so,  = 1709.5 ml × (1L / 1000 ml )  =…

Q: A sample of 1.00 moles of oxygen gas at 50C and 98.6 kPa occupies what volume?

A: a gas is said to be ideal gas if it follows the equation PV = nRT

Q: How many moles of chlorine gas at 120.0 °C and 33.3 atm would occupy a vessel of 17.0 L?

A:

Q: What is the mass of xenon gas contained in a 1.4 L vessel at 3.9 bar and 319.0 K?

A: Given that, Volume of Xenon gas= 1.4 L, Temperature = 319.0 K and pressure = 3.9 bar 1 bar =0.987…

Q: How many moles of CH4 gas would occupy 3.01 L at 101.3 kPa pressure and 30 C?

A: Given :-  Pressure of the gas = 101.3 kPa  Volume of the gas = 3.01 L  Temperature = 30 °C  To…

Q: A sample of Ne gas occupies 0. 220L at 0.86 atm. What will be its volume at 29.4kPa?

A: This problem can be solved by using Boyle's law. It states that the pressure of a gas is inversely…

Q: How many moles of chlorine gas at 120.0 °C and 33.3 atm would occupy a vessel of 12.0 L?

A: The ideal gas equation is: PV=nRT······(1) Here, P is the pressure, V is the volume, n is the number…

Q: Determine the molar mass of an unknown gas if a sample of this gas weighing 0.597 g occupies 100 mL…

A:

Q: A 0.350 g sample of nitrogen gas (N₂) at 90.5 K exerts a pressure of 55.0 kPa. What volume will it…

A: This problem can be solved with the help of ideal gas equation. PV=nRT P=55000 Pa = 55000 / 101325…

Q: What volume (in L) will 3.21 mol  of methane gas occupy at 25.0 oC and 92.1 kPa?

A:

Q: How many moles of chlorine gas at 120.0 °C and 33.3 atm would occupy a vessel of 34.0 L?

A: The ideal gas equation is  PV = nRT  P = pressure of the gas V = volume of vessel n = moles of gas R…

Q: A cylinder with a moveable piston contains 0.553 mol of gas and has a volume of 253 mL. What is its…

A:

Q: How many moles of chlorine gas at 120.0 °C and 33.3 atm would occupy a vessel of 27.0 L?

A: Record the given data, P = 33.3 atm V = 27 L R = 0.0821L.atm T = 120+273 K = 393 K

Q: How many moles of chlorine gas at 120.0 °C and 33.3 atm would occupy a vessel of 26.5 L?

A: Given, Volume of Cl2 = 26.5 L Pressure = 33.3 atm Temperature = 120°C = 120+273 = 393 K

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.