If 15.5 L of nitrogen at 748 mm Hg are compressed to 725 mm Hg at constant temperature. What is the new volume?

Q: If a gas has a volume of 34.5 L at 1020 mm Hg and 25.0C, what is the volume at standard temperature…

A: Given:- For a gas,  Volume (V1)= 34.5L Pressure (P1)= 1020 mm Hg = (1020/760)atm = 1.342 atm…

Q: How many moes of oxygen gas are needed to react completely with 52.0 L of gaseous CH4 at stp during…

A: Methane +Oxygen →carbon dioxide + water Balanced chemical Equation: CH4(g) +2O2(g) →CO2(g) +H2O…

Q: What is the molar mass of air, measured at 25 ̊C, 770 mm Hg? The density of the air under these…

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Q: A balloon contains .75 L of helium at 69 C is cooled to 11 C at a constant pressure. What volume…

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Q: at atm a sample of H2 gas has a volume of 2.00 Liters at 327 degrees celcius. What volume in Liters…

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Q: What is the temperature of 0.250 mol of chlorine gas at 655 mm Hg if the volume is 500 mL?

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Q: Give examples of 6 gas laws

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Q: Given 3.0 moles of krypton gas Kr(g), how many liters will this sample occupy at STP?

A: STP stands for Standard Temperature and Pressure. It is defined as a temperature of 273.15 K (0…

Q: What Celsius temperature, T2,

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Q: What is the density of methane gas, CH4 at STP?

A: STP means standard temperature and pressure  Temperature is 0°C or 273 K  Pressure is 1 atm

Q: A balloon has a pressure of 3.00 atm, at 40.0°C, and contains 2.00x10-3 mol of oxygen. What is the…

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Q: Calculate the pressure of 0.0789 mol of chlorine gas that occupies 891 mL at -15°C.

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Q: What is the volume occupied by 0.298 mole of Ne gas at STP?

A: At STP, volume of 1mole of any gas is 22.4 L. volume of 22.4 L is also known as molar volume of gas…

Q: What is the new volume of a 500 L sample of a gas that is cooled from 31.1 °C to -28.9 °C?

A: In accordance with the Charles Law the volume (V) of a given amount of gas is directly proportional…

Q: Please see attached picture

A: Avogadro’s hypothesis is used to relate the amount of gas and the volume.

Q: The amount of gas that occupies 36.52 L at 68.0 °C and 672 mm Hg is mol.

A: The ideal gas equation gives the relation between pressure, volume, no of moles, temperature and…

Q: What volume of Cl2 gas is occupied by 11.1 grams at 25.0 degrees Celsius and 740. mm Hg?

A: Given mass of chlorine gas = 11.1 g Molar mass of chlorine gas = 71 g/mol Number of moles of…

Q: What volume is occupied by 8.6 g of nitrogen gas, N2, at 23°C and 1.15 atm pressure?

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Q: A sample of oxygen gas occupies a volume of 8.82 L at 68.0°C and 313 torr. If the volume of the gas…

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Q: Mercury vapor contains Hg atoms. What is the volume of 201 g of mercury vapor at 822 K and 0.248…

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Q: 4. At temperature 500 °C, what is the volume of occupied 4.2 grams carbon dioxide gas at STP?

A: Number of moles is calculated by dividing given mass with molecular mass.

Q: P1=77.4 atm, V1=42.7 L, P2=?atm, V2= 14.4 L

A: The objective of the question is to find the final pressure (P2) of a gas when the initial pressure…

Q: 0.223 g sample of a certain gas occupies 72.1 mL at STP (1 atm at 0 C). Determine the molar mass of…

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Q: What volume will 1.00 g of propane (C3H8) occupy at STP?

A: Mass of propane=1.00g At stp  Temperature=273K Pressure=1

Q: A gaseous mixture of Ne and Ar has a density of 1.014 g/L at 2.439°C and 628.8 mm Hg. What is the…

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Q: A gas sample at 62.5oC and 800 mm Hg pressure has a volume of 3.50 L.  What is the volume of the…

A: Given that : The temperature of the gas sample =  62.5oC The pressure of the gas = 800 mm Hg The…

Q: Calculate the mass of 15.0 L of NH3 at 27.0° C and 900.0 mm Hg.

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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: A helium balloon is filled to a volume of 2.88 x 103 L at 722 mm Hg and 19°C. When the balloon is…

A: In this question, we want to determine the volume of Hellium balloon at -55°C and 339mmHg  You can…

Q: Calculate the volume of 359  g of CH3CH3 at .658 atm and 75 degrees celsius

A: Given: Mass of ethane = 359 g Pressure = 0.658 atm Temperature = 75°C                   = (75+273)K…

Q: What is the mass of hydrogen gas (RMM=2) that occupies volume of 35 L at STP?

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Q: A gas originally occupying 10.1 L at 0.925 atm and 25°C is changed to 15.0 L at 625 torr. What is…

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Q: 1) Determine the volume of 25.0 g of propane, C3H8, at STP.                       (R = 0.0821…

A: Ideal gases are those gases which follow ideal gas equation. The relation between pressure, volume,…

Q: calculate the number of grams of H2 gas in 1620 mL of H2 gas at STP?

A: The Standard Temperature and Pressure conditions is generally used in calculations of the gases…

Q: The amount of gas that occupies 63.2 L at 24.9 °C and 600 mmHg isT mol.

A: Given: Volume of gas, V= 63.2 L temperature of gas, T = 24.9oC  = (24.9 + 2730 K…

Q: A sample of helium gas has a volume of 7.06 L at 45 oC and 2.12 bar. What would be the volume of…

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Q: What volume will 4.25 g of helium gas occupy at 92 °C and 770. mm Hg pressure? Volume =

A: Ideal gas equation is: PV = nRT Or, PV=mMRT…

Q: A balloon is filled with nitrogen to a volume of 7.50 Liters at 15 oC. The balloon is heated to 55…

A: Record the given data, Volume V1 = 7.50 liters Temperature T1 = 15°C + 273 = 288 K Temperature T2 =…

Q: What is the volume of CO2 of a 25.0 g sample of the gas held in a 750 mL container at 22.5 degrees…

A: Ideal gas law mathematically expressed as PV =nRTP = pressureV = volumen = moles R = gas constantT =…

Q: What would be the temperature (in K) of a 0.762 mol sample of gas if it occupied a volume of 0.357 L…

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Q: If you have 3.5 moles of H2 (g) at 25 degrees Celsius and at 1 atm, what is the volume?

A: Given , No. of moles (n) = 3.5  Gas= H2  Temperature= 25 degree Celsius = 25+273.15 = 298.15 Kelvin…

Q: A sample of methane gas at a pressure of 1.09 atm and a temperature of 299 °C, occupies a volume of…

A: Two problems that needs to be solved by using Charle's law.

Q: A sample of oxygen gas occupies 17.0 L at 78.1°C and 0.956 atm. What volume will it occupy at 21.0°C…

A: Given volume of oxygen,V1 = 17.0 L, Temperature, T1 = 78.1⁰C =351.25 K P1= 0.956 atm, T2 = 21.0⁰C=…

Q: At 570 mm Hg and 25.0 celcius a gas sample has a volume of 2270 ML. What is the final pressure  (in…

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Q: What is the molar mass of a gas, in g/mol, if 286 mL at 69 oC and 17.9 Torr pressure weighs 0.0156…

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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.