1. A 0.678 gram sample of gas occupies 0.214 L at standard conditions; what is the molar mass of the gas?

Q: if the density of an ideal gas at STP is found to be 1.96 g/L, what is the molar mass?

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Q: A certain gas has a density of 1.72g/L at STP. What is its molar mass?

A: Given that: Density of the gas = 1.72g/L The gas is STP. To find, the molar mass of the gas?

Q: Given a gas with a pressure of 695 Pa, convert this to units of atm:

A: The question is based on the concept of dimensional analysis. we have been given pressure in…

Q: An experiment in the analysis of magnesium ribbon illustrates the use of Ideal Gas Law. The number…

A: If the experiment was repeated with the same mass of Fe(s) instead of Mg(s), and all others…

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

A: Given,Initial pressure, P1 = 0.85 atmInitial pressure, T1 = 62 oC = (62 + 273.15) K = 335.15…

Q: What is the ideal gas law? Why is it useful?

A: The behaviour of the gases can be easily described by certain quantitative relationships between…

Q: If 0.55-g of a gas occupies 0.200-L at 0.968 atm and 289 K, what is the molecular mass of the gas?

A: Given data: The mass of gas m=0.55 g. The volume of gas V=0.200 L. Pressure P=0.968 atm. Temperature…

Q: If a student used 1.138 grams of unknown metal, and collected 0.027 moles of H2 gas, what is the…

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Q: 1. Write a balanced chemical equation, including physical state symbols, for the decomposition of…

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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: An experiment shows that a 113 mL gas sample has a mass of 0.171 g at a pressure of 721 mm Hg and a…

A: given values : volume = 113 mL = 0.113 L pressure =721 mmHg = 721760 atm                  =0.94 atm…

Q: suppose that 2.96 moles of heluim gas occupies a 73.3L tank what temp will the pressure in the tank…

A: Given, moles of helium gas = 2.96 mol            volume = 73.3 L            pressure = 550 mm Hg =…

Q: the density of an ideal gas at STP is found to be 0.901 g/L, what is its molar mass

A: At STP ANY GAS OCCUPIES 22.4 LITERS  SO VOLUME OF GAS AT STP IS 22.4 LITERS

Q: If a 10.0 L sample of gas at 110 kPa has its pressure increased to 440 kPa, what is the new volume…

A: Given: Initial Pressure, P1=110 kPa The initial volume, V1= 10.0 L Final Pressure, P2=440 kPa The…

Q: The airbags that protect people in car crashes are inflated by the extremely rapid decomposition of…

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Q: Determine the final pressure of a gas, initially at 3.0 L, 2.2 atm, and 72oC, which undergoes a…

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Q: At 25 oC and 1 atm, what is the molecular weight of this gas?

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Q: If an ideal gas remains a gas down to absolute zero, what volume would the gas occupy?

A: The ideal gas is basically a theoretical gas that occupies negligible space and does not have any…

Q: What is the density of xenon gas at standard conditions

A: Molar mass of xenon = 131.293 g The volume occupied by 1 mol of any gas on STP is 22.4 L. Hence, the…

Q: An unknown diatomic gas has a density of 1.696 g/L at STP. What is the identity of the gas?

A: STP refers to standard temperature and pressure. Standard temperature is (0oC) 273K Standard…

Q: At 250 kpa 309K, a sample of gas has a volume of 4.2 L. How many moles of gas are present?

A: The ideal gas equation is  PV = nRT  P = pressure in kPa V = volume in Litres  n = moles  R = gas…

Q: neously. After a certain amount of time, it was found that 6.71I mL of O, had passed of the unknown…

A: Using Graham's law of diffusion, Rate of diffusion of a gas is inversely proportion of square root…

Q: A 40.0 g gas sample occupies 11.20 L at 1.00 atm and 273.15K. What is the molar mass (in grams/mol)…

A: Given Datas ; m = 40.0 g V = 11.20 L P = 1.0 atm T = 273.15 K  R = 0.0821 L.atm/mol.K M = ?

Q: An unknown gas with a mass of 205 g occupies a volume of 20.0 L at standard temperature and…

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Q: A 0.540 L gas sample is collected at 85°C and 1.00 atm. The mass of the gas is measured to be 1.66…

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Q: What is the molecular mass of this gas?

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Q: At SATP, a gas has a density of 1.78 g/L. What is the molar mass of the gas?

A: We have the ideal gas law as: PV= nRT We know no of moles = given mass÷ molar mass ⇒PV = (w÷M)RT…

Q: sample of the same gas (under identical conditions) occupies 52.85 L, how many moles of gas are in…

A: Given , initial volume = 12.06L with no. Of moles = 11.10mol  We have to find no. Of moles at volume…

Q: 7.If container "A" is occupied by 1.0 mole of oxygen gas (molar mass 32.0 g/mol) while container "B"…

A: Using ideal gas equation,  PV=nRT  If T and P are constant then volume is directly proportional to…

Q: If 34.5 mol of an ideal gas occupies 86.5 L at 315 K, what is the pressure of the gas?

A: The pressure of the gas can be determined using Ideal gas Equation

Q: A 0.48 mole sample of He gas occupies a volume of 11.7L. What is the volume of 0.72 moles He gas…

A: At constant pressure and temperature   V is directly praportional to moles (n)  This is called…

Q: An unknown gas at 49.1 C and 1.05 atm has a molar mass of 30.07 g/mol. Assuming ideal behavior, what…

A: The formula required to determine the density of gas with ideal behavior is as follows,

Q: A 0.338-g sample of gas occupies 125 mL at 60. cm of Hg and 25°C. What is the molar mass of the gas?

A: It is given that the mass of the sample is 0.338 g and occupies 125 mL at a pressure of 60 cm Hg at…

Q: What volume will a 0.981 mole gas sample occupy at standard temperature and pressure?

A: We can calculate the volume occupied by 0.981 moles by using the ideal gas equation:…

Q: A sample of 0.264 mol of nitrogen gas takes up 0.9861 L of space at 1.03 atm. At what temperature…

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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: How does the volume of an ideal gas at constant temperature change as the pressure increases?

A: At constant temperature, pressure of given mass of the ideal gas is inversely proportional to the…

Q: The average molecular speed in a sample of Xe gas at a certain temperature is 236 m/s. The average…

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Q: Which of the graphs below shows the relationship between the molar volume and molar mass of ideal…

A: Avogadro rule: According to this rule, if the temperature and pressure of the gases are the same…

Q: The airbags that protect people in car crashes are inflated by the extremely rapid decomposition of…

A:

Q: A storage tank of volume V contains the mass M of oxygen (O2) at pressure P. What is the temperature…

A: Given, Volume = V Mass of oxygen = M Pressure = P   Required,                           Temperature…

Q: A 1.58 gram sample of an unknown gas is found to occupy a volume of 0.886 L at a pressure of 658 mm…

A: Molar mass of unknown gas can be calculated by using ideal gas equation.

Q: Give some application and importance of the Ideal Gas Laws.

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Q: If 56.5 mol of an ideal gas occupies 92.5 L at 339 K, what is the pressure of the gas?

A: The question is about calculating the pressure of an ideal gas with the given data:

Q: 6.906 g sample of dintrogen pentaoxide gas in a 275 mL container at 35°C has a pressure of

A: The question is based on ideal gas law. we have to calculate pressure for dinitrogen pentoxide. we…

Q: If 0.00901 mole of neon gas at a particular temperature and pressure occupies a volume of 242 mL,…

A: According to Avogadro, “at constant temperature and pressure, volumes of gases are related to…

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

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Q: Consider the following reaction: 2 NH, (9) + 3 Cl, (9) → N, (9) + 6 HCI (g) A mixture is prepared…

A: According to the balanced chemical equation: 2 moles of ammonia requires 3 moles of chlorine so, 15…

Q: What is the molar volume of Xe gas under the conditions of temperature and pressure where its…

A: Let volume of gas = 1 L Mass of Xe = density * volume              =     6.7 g/L * 1 L…

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.