An unknown gas weights 34.2g and occupies 67 mL at 2.0 atm and 24.5 Celsius. what is its molar mass?

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…

A:

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: A newly discovered gas has a density of 2.27 g/L at 26.0 °C and 739 mm Hg. What is the molar mass of…

A: Given: Density of gas = 2.27 g/L. Temperature = 26.0 oC And the pressure of gas = 739 mm Hg.

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: A sample of gas of mass 3.66 g  occupies a volume of 515 mL  at 48 oC  and 0.24 atm  pressure. What…

A:

Q: A 2.65 g2.65 g sample of an unknown gas at 73 ∘C73 ∘C and 1.00 atm1.00 atm is stored in a 2.75 L2.75…

A:

Q: If a 2.29-g sample of a gas occupies 750. mL at STP, what is the molar mass of the gas at 125oC?

A: An ideal gas is a potential gas consisting of several particles of random motions not…

Q: A newly discovered gas has a density of 2.16 g/L at 26.0 °C and 731 mm Hg. What is the molar mass of…

A: Given: The density of new element,(d)=2.16 g/L The temperature, (T)=26.0 °C=(273.15+26)=299.15 K The…

Q: What is the density of the gas in g/L at STP if the molar mass of the gas is 129 g/mol?

A: The molar mass of the gas is = 129 g/mol The density of the gas in g/L at STP is =?

Q: A sample of N2O gas has a density of 2.85 g/L at 298K. What is the pressure of the gas(in mmHg)?

A: Molar mass of N2O (M) is 44.013 g mol-1 Density (d) is 2.85 g L-1 Temperature (T) = 298 K Gas…

Q: What mass in grams of oxygen gas will occupy 250.0 mL at 754.0 MMHG and 25.0 Celsius?

A: We can determine the number of moles of Oxygen from ideal gas law : PV = nRT Where  P = pressure of…

Q: The Goodyear blimps, which frequently fly over sporting events, hold approximately 175,000 ft3 of…

A: Given,Mass of the gas = 175,000 ft3 of heliumPressure = 1 atmTemperature = 23 oC = 273.15 +23 =…

Q: How many moles of chlorine gas at 120. °C and 33.3 atm would occupy a vessel of 26.5 L?

A: According to ideal gas law, PV = nRT where P = pressure V = volume n = moles R = gas constant =…

Q: Oxygen gas reacts with powdered aluminum according to the following reaction:…

A: The reaction is given below.

Q: If the density of a gas is 1.2 g/L at 745. Torr and 20 C. What is its molecular mass

A: From Ideal gas equation it is known that------- pV = nRT where p is the pressure , V is the volume…

Q: What is the molar mass of a gas if .427 g of the gas occupies a volume of 125 mL at 20.0C and 980…

A: Given data mass of gas : m = 427 g Volume of gas : V = 125 mL = 0.125 L Pressure of gas : P = 980…

Q: A sample of N2 gas has 4.42 moles and occupies 1.06L at 25 degrees Celsius. What volume will it…

A:

Q: What is the volume of 3.59g of NO gas at 1.5 atm and 35 Celsius?

A: Given that : Mass of NO gas = 3.59g Pressure = 1.5 atm Temperature = 35°C = 308 K Volume of NO gas =…

Q: A 3.55 g sample of an unknown gas at 23 ∘C and 1.05 atm is stored in a 3.05 L flask. What is the…

A:

Q: If 15.0 g of CO2 gas has a volume of 0.30 L at 310 K, what is its pressure in mmHg? In Pa?

A: Given that Mass of CO2 = 15.0 gmVolume = 0.30 LTemperature = 310 K   To calculate the pressure in…

Q: What is the molecular weight of a gas if 2.21 g of the gas occupies a volume of 1.72 L at 25.0 °C…

A: The ideal gas law relates the volume of a gas at a certain pressure to the amount of gas at that…

Q: When 4.67 L of carbon dioxide at 485.6 mmHg and 25.0 ℃ is heated to 475.0 ℃ and converted to 754.2…

A: Given P1 = 485.6 mmHg V1 = 4.67 L T1 = 25°C P2 = 754.2 mmHg V2 = ? T2 = 475°C

Q: How many mols of gas are found in a vessel of volume 593.3 L when at a temperature of 16.6 °C and a…

A:

Q: An anesthetic gas contains 64.81% carbon, 13.60% hydro-gen, and 21.59% oxygen, by mass. If 2.00 L of…

A: Ideal gas equation It is also known as general gas equation. PV=nRT P=pressure V=volume n=no of…

Q: What is the molar mass of an unkown gas with a density of 2.00 g/L at 1.00 atm and 25.0 degrees…

A: Given Density of unknown is 2.00 g/L at 1.00 atm and 25.0°C To find  Molar mass of the unknown

Q: Cyclopropane, a gas that when mixed with oxygen is used as a general anesthetic, is composed of…

A: The given mass percent is converted into gram. Next determine the number of moles of each element.…

Q: 0.117 moles of SF6 gas are stored at a temperature of -11.0 ∘∘Celsius and at 480.0 kPa. What is its…

A: Given that: Moles of gas (n) = 0.117moles T = -11.0°C = -11.0°C + 273 = 262K P = 480.0kPa = 480.0kpa…

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: What is the molar mass of a gas with a density of 2.875 g/L at 760.0 mmHg and 11.00°C?

A:

Q: 4. A 30.6 g sample of gas occupies 22.414L at STP. What is the molecular weight of this gas?

A: As per the ideal gas equation: PV=nRT where, P = Pressure of gas V = Volume occupied by the gas n =…

Q: What is the molar mass of a gas that has a density of 2.62 g/L at 2.50 atm and 20.0 Celsius?

A: given: density = 2.62 g/L pressure = 2.50 atm Temperature = 20oC+ 273 = 293 K molar mass of gas = ?

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: If a gas occupies 33.0 L at 50.0 ⁰C, what volume will it occupy at 100. ⁰C, assuming the pressure…

A: We know ideal gas equation , PV = nRT  where, P- pressure of gas  V- volume of gas  n- Number of…

Q: The density of an unknown gas compound is 6.52 g./L at (STP) What is the molar mass of the gas?

A: Density of gas=6.52 g/L At STP Temperature=273.15K Pressure=1atm Molar mass of gas=?

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

A: It is given that the anaesthetic gas contains, 64.81% carbon, 13.6% of hydrogen and 21.59% of…

Q: At 741 torr and 44 °C, 7.10 g of a gas occupy a volume of 5.40 L. What is the molar mass of the gas?

A: Using the ideal gas equation, given the pressure, temperature, mass and volume of the gas, where R…

Q: A 2.05 g sample of an unknown gas at 59 ∘C and 1.10 atm is stored in a 2.85 L flask. What is the…

A: Given,Mass of the sample = 2.05 gVolume is 2.85 LTemperature = 273.15 K + 59 = 33.152 KPressure =…

Q: What is the molar mass of a gas with the density of 5.84 g/L at 1.3 ATM and 27 degrees C?

A: It is given that the density of a gas is 5.84 g/L and the pressure of the gas is 1.3 atm and at a…

Q: If a gas occupies 1325 mL at 25oC and 740 mmHg, what volume will it occupy at the same temperature…

A: P1 = 740 mm Hg V1 = 1325 ml T1 = T2 = 250C = 298 K P2 = 450 mm Hg

Q: How many moles of an ideal gas are in a 1,709.5 mL container at 34.1°C and 700.7 torr?

A: Volume = 1709.5 ml   ....Or  because 1 L = 1000 ml    ...so,  = 1709.5 ml × (1L / 1000 ml )  =…

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…

A:

Q: What is the molecular mass of a gas if 3.5 g of the gas occupies 2.1 L at STP?

A: A numerical problem based on gas law, which is to be accomplished.

Q: 12. What is the molar mass of a gas that has a density of 5.75 g/L at STP?

A: Write the ideal gas equation. PV= nRT where P is the pressure, V is the volume, n is the number of…

Q: Calculate the volume of a sample of an ideal gas that contains 5.58 mol at 738 mmHg and 0°C.

A: Following information given in the question - Moles of the gas = 5.58 mol Pressure = 738 mmHg…

Q: If 0.60 g of a gas occupies 300mL at 27°C and 630mm Hg of pressure, what is the molar mass of the…

A: Given that,Mass of the gas=0.60 gVolume of the gas=300mLT=300KP= 630mmHg

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…

A:

Q: A 3.65 g sample of an unknown gas at 61 ∘C and 1.00 atm is stored in a 2.05 L flask. What is the…

A:

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: 2.15g gas occupies 7.50 x 102mL at STP.  What is molar mass of gas?

A:

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.