. What is the rms speed of BrF3 gas at 21C? 2. What is the density (g/L) of NH3 at 1.00 atm and 25C?

Q: If a gaseous mixture is made by combining 2.15 g Ar and 3.13 g Kr in an evacuated 2.50 L container…

A:

Q: 3.00 L of an ideal gas in a closed container at 25.0oC and 76.0 mmHg is heated to 400oC.  What is…

A: Given:  Volume of container = 3.00 L  Initial pressure = 76.0 mm Hg  Initial temperature = 25.0°C =…

Q: A gas has a volume of 1.37 · 101 L, a pressure of 4.20 atm and a temperature of -1.72 · 102 oC. What…

A: To solve this problem, we will use the equation:-  P1V1/T1 = P2V2/T2

Q: What volume, in milliliters, of fluorine gas at 30.0 °C and 725 mmHg is needed to produce 2.20 g of…

A:

Q: The volume of a sample of gas measured at 26 ºC and 0.986 atm is 10.50 liters.  What final…

A: from charles law: temperature and volume are directly realted using degrees kelvin. here both…

Q: A sample of NO2 gas has a volume of 37.3 mL at a pressure of 621 mm Hg and a temperature of 52oC.…

A: Volume of a sample of NO2 = 33.8 mL

Q: A sample of gas occupies a volume of 10.5 Lat 700 mmHg and 100°C. What would the new pressure be, in…

A: Given that, V1= 10.5 L , P1=700 mmHg, T1=100°C = (100+273) K = 373 K  V2=8.0 L , P2 =? , T2= 250 °C…

Q: Calculate the total pressure (in atm to 2 sf) in a container with 616 torr N2, 104 torr O2, and 40.…

A:

Q: sample of gas occupies a volume of 1,400 mL at 25oC and 760 mm Hg. What volume would it occupy at a…

A: As the temperature remains constant, Boyle's law is followed. Thus,  P1V1T1 = P2V2T2 Where T1 and T2…

Q: n an airplane flying from San Diego to Boston, the temperature and pressure inside the 5.544 m3…

A: Using ideal gas equation for gases we can find no. Of moles  of air molecules.

Q: A mixture of three noble gases (He, Ne, Ar) is confined to a 2.5 L container at 19 degrees celcius.…

A: Given: The volume of the container is 2.5 L and the temperature is 19°C. The pressure exerted by He,…

Q: 70. What mass of neon gas would be required to fill a 3.00-L flask to a pressure of 925 mm Hg at 26…

A: PV = nR T  where  P = 925 mm Hg x 1 atm/760 mmHg = 1.217 atm V = 3 L T = 26 °C = 26 + 273 K = 299 K…

Q: elium atoms have a mass of 4u4u and oxygen molecules have a mass of 32u32u, where uuu is defined as…

A: To find the temperature at which the root mean square speed of a helium atom equals the root mean…

Q: A helium-filled balloon has a volume of 1 ?3 . As it rises in the earth's atmosphere, its volume…

A: Given P1 = 1 atm V1 = 1 m3 T1 = 20°C P2 = 0.1 atm V2 = ? T2 = -40°C

Q: A sample of oxygen gas occupies a volume of 0.200 L at 60.00C and 500. mmHg of pressure. What will…

A:

Q: sample of N2(g) has a volume of 16.7 L at STP. What is the pressure of N2(g) when the volume and…

A:

Q: At what temperature will a 5.00 g sample of neon gas exert a pressure of 495 torr in a 8.00 L…

A: The ideal gas equation is PV = nRT P = pressure of gas V = volume  n = moles of gas = mass/molar…

Q: Magnesium burns in air to produce magnesium oxide, MgO, and magnesium nitride, Mg3 N2 . Magnesium…

A:

Q: Sulfur trioxide, SO3, is produced in enormous quantities each year for use in the synthesis of…

A: Given: 1) Temperature =340°C =(340+273)K 2) Pressure = 6.75 atm 3) Mass of sulfur = 5.70 g 4)…

Q: Butane, C4H10, is used as a fuel for camping. If you have 108 mL of butane gas at 715 mmHg and 25…

A: According to ideal gas law PV = nRT  where P =pressure in atm  V = volume in L  n = moles of gas R =…

Q: If a gaseous mixture is made by combining 2.17 g Ar and 2.55 g Kr in an evacuated 2.50 L container…

A:

Q: What volume does 15.0g sample of helium (He) gas at 25C and 1.66 atm occupy?

A: Calculate the number of moles of He gas nHe = WHeMHenHe = 154 molnHe = 3.75 mol   Here, n stands for…

Q: A student adds 4.00 g of dry ice (solid CO₂) to an empty bal- loon. What will be the volume of the…

A:

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: At constant pressure, the mean free path 1l2 of a gas moleculeis directly proportional to…

A: Let the mean free path be ƛ, temperature be T, Pressure be P and diameter be d. At constant…

Q: How many kilograms of sodium chlorate (NaClO3) are needed to produce sufficient oxygen (O2) to fill…

A: The ideal gas equation is given by,                                                         Where,…

Q: A gas occupies a volume 1.27 L and 25 Celsius is adjusted to new volume of 1.02 L at standard…

A:

Q: Draw the simplest set of curved arrows that shows how the structure on the left could be turned into…

A: In a molecule with resonance, the electrons are not fixed in one specific location, but are spread…

Q: 7.596×10-4 mol of CF4(g) (tetrafluoromethane gas) is generated into a 131.0 mL headspace, at 25.0…

A:

Q: How many molecules are there in an ideal gas with a volume of 3.09 L3.09 L at STP?

A:

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…

A:

Q: Calculate the dednisty of hydrogen bromide(HBr) gas in grams per liter at 661 mmHg and 34 degrees…

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

Q: 2) A sample of N2(g) has a volume of 16.7 L at STP. What is the pressure of N2(e) when the volume…

A:

Q: 30.0

A: Dear student this question is related to molar mass concept.

Q: 7.596×10-4 mol of CF4(g) (tetrafluoromethane gas) is generated into a 131.0 mL headspace, at 25.0…

A:

Q: What is the molar mass of a gas that has density 1.40 g/L at 760. mmHg and 273K?

A:

Q: What volume, in mL, would 1.00 grams of N2(g) occupy at a temperature of 18.5 oC and a pressure of…

A: To calculate the Volume required by N2 (g) , we would use Ideal gas equation.  PV = nRT

Q: sealed flask contains 366 mL of gas at 42.7 oC and 836 mmHg. If the gas in the flask has a mass of…

A: Mole is equal to weight of substance divide by it's molar mass

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

A:

Q: Calculate the pressure (in atm) exerted by 1.00 mole of ammonia at 27 oC in a 10.00-liter container.…

A: Given,Moles of ammonia=1.00 moleTemperatureT=27°CVolumeV=10.00 litera=4.00 L2 atm/mol2b=0.0400L/mol

Q: PC13(g) + Cl₂(g) → PCI5(0) Bond CI-CI P-CI O-662 kJ mol1 O-67 kJ mol 1 O-905 kJ mol O-243 kJ mol 1…

A: Given, PCl3(g) + Cl2(g) ➝ PCl5(l) ∆Hrxn = ? Note: PCl3 : 3 P-Cl bond Cl2 : 1 Cl-Cl bond PCl5 : 5…

Q: A sample of helium gas occupies 11.7 L at 23°C and 0.956 atm. What volume will it occupy at 40.°C…

A: Given :-  initial volume = 11.7 L  initial temperature = 23°C  final temperature = 40.°C  pressure…

Q: A meteorological balloon contains 206 L He at 26.6oC and 733 mm Hg. If the volume of the balloon can…

A: Initial volume = 206 L  Initial temperature = 26.6 °C ..Or  because  °C + 273 = k   ..so, 26.6 °C +…

Q: If a gaseous mixture is made by combining 4.66 g Ar and 4.71 g Kr in an evacuated 2.50 L container…

A:

Q: How many moles of gas are present in a 5L chamber containing a pressure of 650mmHg at 55°C?

A: The volume of the gas = 5 LThe temperature of the gas = The pressure of the gas = 650 mmHg = The…

Q: A sample of gas 994.4 mmHg and 22.72 °C is cooled at a temperature of -73.05 °C. What is the new…

A: Given, P1= 994.4 mmHg=994.4760atm  [ Since 1 atm= 760mmHg] V1= 22.72oC= 295.72K P2=? V2= -73oC=…

Q: A sample of H 2 gas occupies a volume of 2.25 L at a pressure of 628 mm Hg and a temperature of…

A: The given data contains, Volume V1 = 2.25 L Pressure P1 = 628 mm Hg. Temperature T1 =308.15 Pressure…

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.