An unknown perfect gas was confined to a 340 cm^3 container at 23 °C. The container also contained 73 Torr of N2. The total pressure was 353 Torr and the total mass was 48.1 mg. a) What is the molar mass of this gas? b) What is the gas?

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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…

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Q: An experiment shows that a 268 mLmL gas sample has a mass of 0.428 gg at a pressure of 755 mmHgmmHg…

A: A gas sample has, Mass =  0.428 g Volume = 268 mL Pressure = 755 mmHg Temperature =  38°C,

Q: The molar volume of a sample of a gas at 353 Kand 100. atm is 0.204 L mol. At these conditions,…

A: Given that : The molar volume of the gas (Vmolar) = 0.204 L/mol The temperature of the gas (T) = 353…

Q: If 73.5 mol of an ideal gas occupies 77.5 L at 35.00 ∘C what is the pressure of the gas?

A: Given Number of moles (n)  =  73. 5 mol Volume (V) = 77. 5 L Temperature (T) = 35.00 OC Pressure…

Q: experiment shows that a 230 mL gas sample has a mass of 0.423 g at a pressure of 755 mmHg and a…

A: Volume of gas (V) = 230mL = 230mL×1L/1000ml = 0.230L  Mass of gas = 0.423 g  P = 755mmHg =…

Q: If 42.0 g  of O2 and 6.6 g  of CO2 are placed in a 5.6 L  container at 20 oC , what is the pressure…

A: Dalton's law: Dalton's law of partial pressures states that in a mixture of non-reacting gases, the…

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A: We will is use ideal gas equation to get the density.

Q: A mixture containing 0.250 mol N2 (g), 0.150 mol CH4 (g), and 0.100 mol O2 (g) is confined  in a…

A: Recall ideal gas law-                    PV=nRTWhere,pressure of gas is P         Volume of…

Q: A 1.60m3 container holds a sample of O2 gas. At 292 K the pressure of the container is 1.06 x 105…

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Q: A high-altitude balloon contains 30.0 L of helium gas at 1.00 kPa. When the balloon moves to an…

A: Given data---> V1=30.0 L P1= 1.00 kPa P2= 25.0 kPa V2= ?

Q: At 1.391.39 atm and 22.75 ∘C22.75 ∘C, a 2.772.77 g sample of gas occupies a volume of 15501550 mL.…

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Q: The mass of an evacuated 260 mL flask is 143.217 g. The mass of the flask filled with 268 torr of an…

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Q: You have produced 170 g of NHin a 5.0L tank at 400.0 C. What is the total pressure of the gasses?

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Q: .A sample of carbon dioxide occupies a volume of 6.70 liters at 105 kPa pressure. What pressure…

A: Given data, V1=6.70 LV2=3 LP1=105 kPa To calculate the new pressure.

Q: ne molecular weight 5 Pa

A: Number of moles = mass / molar mass PV = nRT (ideal gas equation)

Q: Consider a sample of argon gas at 375ºC, 382 mm Hg, and 425 mL. How many moles of argon are in this…

A: Given, Temperature = 375°C Pressure = 382 mmHg  Volume = 425 mL  Number of moles = ?

Q: 3.65 g3.65 g sample of an unknown gas at 75 ∘C75 ∘C and 1.00 atm1.00 atm is stored in a 1.95 L1.95 L…

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Q: A 1.00 m3 container holds a sample of O2 gas. At 287 K the pressure of the container is 1.06 x 105…

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Q: A sample of O3 gas is observed to effuse through a pourous barrier in 7.68 minutes. Under the same…

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Q: A mixture contains O2 at 700. torr pressure, F2 at 900. torr pressure, and Cl2 at 400. torr…

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A: The given reaction is as follows:   The volume carbon dioxide formed = 1.45 LThe pressure of carbon…

Q: Yet another balloon is inflated to a volume of 434 cm³ using 0.141 moles of dry hydrogen gas. An…

A: Given, V1=434cm3 n1=0.141 moles  n2 =? V2=?

Q: A 17.31 mol sample of argon gas at 30.40° C occupies 20.20 L. What

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Q: If a 7.00 gram sample of molecular nitrogen (N2) at 10.0 degrees Celcius occupies 2.50 L, what is…

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Q: The mass of an evacuated 255 mL flask is 143.187 g. The mass of the flask filled with 267 torr of an…

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Q: partial pressure

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Q: An experiment shows that a 258 mL gas sample has a mass of 0.427 g at a pressure of 750 mm Hg and a…

A: The objective of this question is to calculate the molar mass of a gas given its volume, mass,…

Q: The mass of a sample of gas is 827 mgmg. Its volume is 0.270 LL at a temperature of 88 ∘C∘C and a…

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Q: 4) An experiment shows that a 206.2 mL gas sample has a mass of 0.236 g at a pressure of 661.3 mmHg…

A: Given,  Volume of gas = 206.2 ml = 0.2062 L Mass of sample = 0.236 g Pressure of gas is 661.3 mmHg =…

Q: A 2.00 m3 container holds a sample of O2 gas. At 287 K the pressure of the container is 1.04 x 105…

A: Given,  Volume of the container, V = 2.00 m3                                                 = 2000…

Q: A sample of a gas weighs 3.05 g and has a volume of 856.0 mL at 965.0 torr and 24.0 °C. What is its…

A: mass of gass (m) = 3.05 g Volume of gas (V) = 856.0 mL = 0.856 L Pressure (P) = 965.0 torr =…

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Q: A gas made up of atoms escapes through a pinhole 0.799 times as fast as Kr gas. Write the chemical…

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Q: An unknown gas at 73.1 ∘C and 1.05 atm has a molar mass of 44.10 g/mol. Assuming ideal behavior,…

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Q: A 1.40 m3 container holds a sample of O2 gas. At 282 K the pressure of the container is 1.04 x 105…

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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.