A flask with a total volume of 0.0200 L is found to contain 0.05649 g of an unknown gas when the pressure and temperature are 0.960 atm and 84 °C, respectively. What is the molecular weight of the unknown gas?

Q: How many grams of a gas with a molar mass 146.42 g/mol would be required to occupy a 868 mL flask at…

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Q: If the volume of a gas cylinder is increased from 3 atm to 6 atm what will the resulting change in…

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Q: A 1.35 g sample of an unknown gas at 43 ∘C and 1.10 atm is stored in a 1.45 L flask. What is the…

A: The density is calculated by using given mass and volume.

Q: Calculate the molecular weight (molar mass) of a gas if 0.35 g of the gas at a temperature of 37.6…

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

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: is the molar mass of a gas that has a sample mass of 3.17 g and occupies a volume of 548 mL at 2.00…

A: Answer  Calculate molar mass of gas   Gas equation   PV   =    nRT…

Q: A flask with a total volume of 0.150 L is found to contain 0.3319 g of an unknown gas when the…

A: Ideal gas  equation  PV=nRT P=pressure V=volume R=gas constant N=no of moles

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: If the density of an ideal gas at STP is found to be 0.0902 g/L., what is its molar mass? molar…

A: The given data is as follows: The density of the ideal gas at STP = 0.0902 g/L The molar mass of the…

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: If the initial temperature of an ideal gas at 2.250 atm is 62.00 ∘C, what final temperature would…

A: Given : Initial temperature of gas = 2.250 atm  Initial temperature of gas = 62.00 oC And final…

Q: If 1.36 g of a gas occupies a volume of 1.00 L at 0.984 atm and 30 C, what is the molar mass in…

A: From ideal gas law, we know that  PV = nRT Where  P = pressure of the gas V = volume of gas n =…

Q: A certain mass of nitrogen gas occupies a volume of 9.64 L at a pressure of 3.59 atm. At what…

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Q: An ideal gas is allowed to expand from 8.80 L to 48.4 L at constant temperature. By what factor…

A: Given: An ideal gas is allowed to expand from:            V1 = 8.80 L to  V2 = 48.4 L at constant…

Q: A large flask with a volume of 936 mL is evacuated and found to have a mass of 134.66 g. It is then…

A: step 1: Here, given as the: Thus, the mass of gas is 1.38g. Now, to calculate the molar mass,…

Q: How many moles of gas are there in a 30 L scuba canister if the temperature of the canister is 300 K…

A: Given that, Volume of gas in scuba canister V = 30 L Temperature T = 300 K Pressure P  = 200 atm…

Q: How many moles of gas are present with a volume of 25 L, a pressure of 105 kpa and a temperature of…

A: Using ideal gas equation, we have P*V=n*R*T         --------(1) where, P is pressure  V is volume R…

Q: if 1.75 mol of an ideal gas has a pressure of 2.81 atm and a volume of 50.79 L, what is the…

A: According to ideal gas law, PV = nRT where P = pressure in at = 2.81 atm V = volume in L = 50.79 L n…

Q: Given 100ml of a dry gas, measuring 37°C and 760mmHg pressure, what would its volume be at 60°C and…

A: Given that: volume, V1 = 100 mL = 0.1 L temperature, T1 = 37 oC = 37 + 273 = 310 K pressure, P1 =…

Q: A gaseous compound has a density of 1.69 g/L at 25.2 °C and 1.45 atm. What is the molar mass of the…

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Q: A 4.05 g sample of an unknown gas at 33 °C and 1.05 atm is stored in a 3.05 L flask. What is the…

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Q: A large flask with a volume of 936 mL is evacuated and found to have a mass of 134.66 g. It is then…

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Q: An anaesthetic gas contains 64.81% carbon, 13.60% hydrogen, and 21.59 % oxygen by mass, If 2.00 L of…

A: Given: Volume of gas = 2.0 L Temperature = 25 oC Pressure = 0.420 atm mass =2.57 g % of carbon =…

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: A 1.75 g sample of an unknown gas at 47 C and 1.00 atm is stored in a 1.85 L flask. What is the…

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Q: When an idea gas with initial volume of 2.8 L at a pressure of 755 mmHg has its volume increased to…

A: Given  Initial Volume ( V1 )  = 2.8 Liter  Initial Pressure ( P1 ) = 755 mmHg  Final Volume ( V2 )…

Q: At 1.00 atm and 4.67 °C, a 2.72 g sample of gas occupies a volume of 1540 mL. Calculate the molar…

A: Given - - > P = 1 atm T =4.67 °C = 277.82 K V=1540 ml =1.54 L m = 2.72 g R = 0.08206…

Q: 1.55 g of an unknown gas at 65 °C and 1.10 atm is stored in a 1.65 L flask. What is the density of…

A: Mass of the unknown gas, m = 1.55 g  Temperature, T =  65 °C = 65 + 273.15 K = 336.15 K Presssure, P…

Q: of 93.65g occupies 47.8L at 734mmHg and 32.7°C. What is A gas with a mass its molecular weight?

A: The combination of Boyle's law, Charles's law and Avogadro's law leads to an equation which shows…

Q: What is the pressure in atm of carbon monoxide gas if the total pressure of a mixture of oxygen,…

A: Convert the pressure of oxygen gas in atm.

Q: Calculate the molecular weight of a gaseous element if 0.480 g of gas occupies 367 mL at 0.48 atm…

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Q: Assuming that a 1.5 g gas occupying a volume of 500 mL at a pressure of 2.5 atm and a temperature of…

A: Consider the given information is as follows; Mass of gas = 1.5 g Volume = 500 mL = 0.5 L Pressure…

Q: A gas that has a volume of 28 liters, a temperature of 45 °C, and an unknown pressure has its volume…

A: The combined gas law gives a relationship between pressure, volume, and temperature which can help…

Q: A  2.75 g gas occupies 450 mL at 37 0C and 1.50 atm. What is the molar mass of the gas?

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Q: How many moles of an ideal gas are there if the volume of the gas is 158 L at 14°C and a pressure of…

A: Given :-  Volume of gas = 158 L  Temperature = 14°C  Pressure = 89 kPa  To calculate :-  Number of…

Q: The atmosphere in a sealed diving bell contained oxygen and helium. If the gas mixture has 0.170 atm…

A: Given: The total pressure of the gas mixture = 2.90 atm The pressure of oxygen in the mixture =…

Q: The mass of 1.12 L gas at STP is found to be 6.23 g. What is the molar mass of gas Y ?

A: Given data is: Volume of gas = 1.12 L  Given mass = 6.23 g The procedure to finding the molar mass…

Q: Determine the mole fraction of each gas in a mixture whose partial pressures are 0.467 atm of He,…

A: Given, a mixture of gas of He, Ar and Xewhose partial pressures are 0.467 atm of He, 0.317 atm of…

Q: The atmosphere in a sealed diving bell contained oxygen and helium. If the gas mixture has 0.170 atm…

A: Given: Total pressure of mixture = 3.40 atm. Partial pressure of oxygen = 0.170 atm. Volume of…

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: Consider a 5.0-L sample of Ar gas at a pressure of 0.25 atm. When the gas is compressed to a volume…

A: We know that,  According to Boyle's Law, at constant temperature, pressure is inversely proportional…

Q: A gas sample with a mass of 11.2 g exerts a pressure of 1.05 atm at 22.0ºC and a volume of 2.79 L.…

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Q: A 1.20-g sample of an unknown gas is placed in a 275.0 mL flask at 35 0C and 1.00 atm. What is the…

A: Mass of a sample = 1.20 g  Volume = 275.0 ml  ....Or  because 1L = 1000 ml    so,  = 275.0 ml × (1L…

Q: At 1.29 atm and 29.54∘C, a 3.14 g sample of gas occupies a volume of 1.70 ×103 mL. Calculate the…

A: Given, P= 1.29 atm  Mass = 3.14 g Volume = 1.70 ×103 mL T = 29.54∘C

Q: A flask with a total volume of 0.0300 L is found to contain 0.04120 g of an unknown gas when the…

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Q: Assuming that a 800 mg gas occupying a volume of 1,100 ml at a pressure of 1,600 mmHg and a…

A: Volume = 1100ml = 1.1L  Pressure = 1600 mmHg = 2.1052 atm  T = 75oC =  75 + 273K = 348K  Gas…

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: At 24 °C and 745 mmHg, the density of an unknown gas is determined to be 7.76 g/L. What is the molar…

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Q: What quantity in moles of chlorine gas at 120.0 °C and 33.3 atm would Occupy a vessel of 12.0 L?

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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.