To identify a diatomic gas (X2), a researcher carried out the following experiment: She weighed an empty 4.1-L bulb, then filled it with the gas at 1.80 atm and 28 C and weighed it again. The difference in mass was 8.3g. Identify the gas...

Q: A sample of xenon gas occupies a volume of 6.95L at 431K. If the pressure remains constant, at what…

A: Initial volume, V1 = 6.95 L Initial temperature, T1 = 431 K Final volume, V2 = 3.77 L Final…

Q: Since helium is lighter than air, it is difficult to measure the mass of a sample, so to find out…

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Q: A sample of argon gas at 22.38 °C has a pressure of 94.88 kPa and occupies 28.46 L. How many moles…

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

Q: What is the total volume of gaseous products formed when 170 liters of carbon monoxide react…

A: Avagadro’s law states that equal volume of all gases at same temperature and pressure have same…

Q: A sample of argon gas at 55.19 °C has a pressure of 92.56 kPa and occupies 5.71 L. How many moles of…

A: In this question, we want to determine the number of moles of Argon gas  You can see details…

Q: A 3.35 g sample of an unknown gas at 23 C and 1.10 atm is stored in a 3.05 L flask. What is the…

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Q: 2) A piece of dry ice (solid CO,) with a mass of 28.8 g sublimes (converts from solid to gas) into a…

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Q: A combustion reaction involving 628.0 g n-butanol (C,H100) occurs at 345.0 °C and 15.2 atm. What…

A: Given :-  Amount of butanol = 628.0 g  Temperature = 345.0 °C  Pressure = 15.2 atm  To calculate :-…

Q: A 1.65 g sample of an unknown gas at 45 °C and 1.10 atm is stored in a 1.25 L flask. What is the…

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Q: A) A sample of ideal gas at room temperature occupies a volume of 40.0 L at a pressure of 542 torr .…

A: Boyle’ law states that at a particular temperature and number of moles, the pressure of a gas is…

Q: If the balloon described in Question 6.44 is released into the air and rises to an altitude of…

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Q: If gaseous mixture is made of 2.41 g of He and 2.79 g of Ne in an evacuated 1.04-L container at 25…

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Q: 9. A combustion reaction involving 628.0 g n-butanol (C,H100) occurs at 345.0 °C and 15.2 atm. What…

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

Q: The density of a sample of gas is 1.00 g/L at 745 mmHg and 109°C. What is the molar mass of the gas

A: The ratio of mass per volume of a given substance is called its density. The equation of state of a…

Q: Reaction Stoichiometry Involving Gases 71. Consider the chemical reaction: C(s) + H2O(8) CO(g) +…

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Q: A sample of gas at 1009.8 mmHg, occupying a volume of 12.49 L, and at a temperature of 26.20 °C is…

A: For the phase change of the ideal gas the temperature, pressure, and volume of the initial state and…

Q: A 1.65 g sample of an unknown gas at 55 °C and 1.00 atm is stored in a 2.45 L flask. What is the…

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Q: A sample of argon gas occupies a volume of 866 mL at 28°C. What volume will the gas occupy at 50.7°C…

A: Answer: 931.3 mL volume occupy at 50.7°C

Q: In any of the equation forms of the Ideal Gas Law, IGL, pressure must always be in what unit?  a…

A: It totally depends on that the given gas constant is taken in which unit . We should take pressure…

Q: A 2.0 L vessel is filled with 7.3 x 10-2 mol hydrogen at 1.55 atm. What is the temperature of this…

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Q: A perfect gas undergoes isothermal compression, which reduces its volume by 2.20 L. The final…

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Q: a gas weighs 4.25 g and has a volume of 956.0 mL at 665.0 torr and 35.0 °C. What is its molar mass?

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

Q: If the temperature of a gas confined to such a cylinder is raised from 221°C to 635°C, what is the…

A: Since the cylinder is confined means no change in moles of gas And pressure is also given constant…

Q: Because it is difficult to measure the mass of a sample of a helium, a student transferred the…

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Q: A 1.95 g sample of an unknown gas at 61 ∘C and 1.00 atm is stored in a 1.45 L flask. What is the…

A: Given information:Mass of sample = 1.95 gTemperature = 61 °CPressure of gas = 1.00 atmVolume of…

Q: metimes in lab we collect the gas formed by a chemical reaction over water (see sketch right). This…

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Q: A 15.00 L vessel containing 5.65 g H2 gas at 27°C is connected by means of a valve to a 6.0 L vessel…

A: Given; Volume (V1 ) of H2  vessel = 15 L Volume (V2 ) of O2 vessel = 6 L Temperature (T) = 300K…

Q: At 25°C and 449 mmHg, an unknown pure gas has a density of 0.676 g/L. Which of the following gases…

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Q: A sample of gas at 911.9 mmHg and occupying a volume of 13.20 L has a decrease in pressure to 98.94…

A: We have to calculate the new volume.

Q: A 2.35 g sample of an unknown gas at 51 °C and 1.05 atm is stored in a 1.35 L flask. What is the…

A: Given, mass of a unknown gas sample (m) = 2.35 g Temperature (T) = 51°C = (51 + 273.15) K = 324.15 K…

Q: If the temperature of a gas confined to such a cylinder is raised from 245°C to 554°C, what is the…

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Q: A 4.17 g4.17 g sample of NH3NH3 gas and a 4.17 g4.17 g sample of HClHCl gas are mixed in a 2.00…

A: GIVEN: NH3 gas sample =  4.17 g HCl gas sample = 4.17g Volume of flask =2.00 L Temperature=25oC To…

Q: 627 cm3 of a gas at 14°C occupies what volume at 40 °C, if the pressure does not change? unit:

A: According to Charles's law, the volume of the gas increases when the temperature of the gas…

Q: 9. a) You have determined experimentally that at standard temperature and pressure (0 °C and 1 atm)…

A: For ideal gas the equation of state is :  PV = nRT = (W/M)RT  Or, M = WRT/PV ...(1)  Here, W =…

Q: The volume of gas in a container was originally 3.24L, while at standard pressure, 1.00atm. What…

A: Given information: V1 = 3.24 L P1 = 1.00 atm P2 = 1.20 atm

Q: A 3.45 g sample of an unknown gas at 43 °C and 1.10 atm is stored in a 1.85 L flask. What is the…

A: Given datas ; m = 3.45 g T = 43°C =( 43 + 273 ) K = 316 K P = 1.10 atm  V = 1.85 L Density = mass /…

Q: A 3.25 g sample of an unknown gas at 37 °C and 1.00 atm is stored in a 1.85 L flask. What is the…

A: Mass of sample = 3.25 g Volume = 1.85 L Temperature = 37 ◦C or 310.15 K Pressure = 1 atm

Q: A 1.85 g sample of an unknown gas at 47 °C and 1.00 atm is stored in a 2.85 L flask. What is the…

A: Given: Mass, m =1.85 g Volume , V =2.85 L Pressure, P = 1.00 atm Temperature, T = 47 +273 = 320 K…

Q: A sample of fluorine gas occupies a volume of 1550 mL at 690 mm Hg and 155oC.  What is the mass of…

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

Q: A box contains equal amounts of helium, argon, and krypton (all gases) at 25 °C. Using complete…

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Q: What pressure permits 25.0 cm3 of neon at 735 mmHg to expand to a volume of 40.0 cm3?

A: The initial volume of neon, V1=25.0 cm3 The initial pressure of neon, P1=735 mmHg The final volume…

Q: At what temperature in degrees Celsius will 5.00g cl^2 gas exerts a pressure of 2.55atm and occupies…

A: T = 3034.8 0C

Q: A 15.00 L vessel containing 5.65 g H2 gas at 27°C is connected by means of a valve to a 6.00 L…

A: Given data H2 vessel volume = 15.00 L = V1 O2 vessel volume = 6.00 L = V2  mass of H2 gas = 5.65 g…

Q: A mixture of neon and argon gases, at a total pressure of 882 mm Hg, contains 3.46 grams of neon and…

A: Given that, total pressure  (Ptotal) = 882 mmHg Mass of neon = 3.46 g Mass of argon = 2.27 g Partial…

Q: A sample of gas at 1014.9 mmHg, occupying a volume of 13.55 L, and at a temperature of 20.53 °C is…

A: Combined gas law :-  The relationship between pressure , volume and temperature of a gas under two…

Q: A gas at 34C and 1.75 atm has a density of 3.4 g/L. Calculate the molar mass of the gas?

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

Q: If 8.53 mol of an ideal gas has a pressure of 3.43 atm and a volume of 18.75 L, what is the…

A: Applying gas equation PV = nRT

Q: What is the molecular weight of a gas which has a density of 2.25 g / L at 20.0oC and 1.12atm?

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Q: A 19.50 g sample of a gas occupies a volume of 24.8 L at 22.7ºC and 748.3 mmHg.  What is its…

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Q: 4. What volume would be occupied by a gas that has a pressure of 0.950atm if its volume was 1.50L at…

A: Given: Case I:Volume of gas, V1= 1.50LPressure of gas,P1=1.16 atmCase II:Volume of gas, V2=…

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.