A weather balloon is filled with helium to a volume of 1000 L on the ground where the pressure is 745 torr and the temperature is 20°C. When the balloon ascends to a height of 2 miles, the pressure is 60p torr and the temperature is -33°C. What is the volume of the helium in the balloon at this altitude?

Q: At 27 °C, 500 cc of H2, measured under a pressure 400 torr, and 1000 cc of N2, measured under a…

A:

Q: Ammonia and hydrogen chloride gases react to form solid ammonium chloride. A 12L reaction flask…

A: This question is based on Ideal gas equation. Applying the concept of ideal gas equation you can…

Q: Since helium is lighter than air, it is difficult to measure the mass of a sample, so to find out…

A:

Q: Q2. A piece of dry ice (solid carbon dioxide) with a mass of 5.50 g is placed in a 10.0 L vessel…

A:

Q: A sample of a gas weighs 2.85 g and has a volume of 1001 mL at 715.0 torr and 20.0 °C. What is its…

A: The given mass of a sample of gas is 2.85 g. The given pressure is 715.0 torr.It is known that 1…

Q: A sample of propane gas, C3H8, was collected over water at 22.5 °C and 730. torr. The volume of the…

A: We have,  Temperature = 22.50C Pressure = 730 torr,  ( P = p(C3H8) + p(H2O) ) V = 2.80 L p(H2O) at…

Q: If the balloon described in Question 6.44 is released into the air and rises to an altitude of…

A:

Q: A 1.92 L flask is filled with 2.52 g of some gas (molar mass 42.100g/mol) at 23.1°C. A different…

A: Given: Volume , V = 1.92 L Temperature = 23.1°C = 296.25K No. Of moles gas= 2.52g/42.1gmol-1= 0.0598…

Q: O A spherical weather balloon is constructed so that the gas inside can expand as the balloon…

A: GAS LAWS: The laws that explain the relationship between pressure, temperature and volume of the…

Q: A weather balloon is inflated to a volume of 24.5 L at a pressure of 750 Torr and a temperature of…

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

Q: A gas-filled weather balloon with a volume of 65.0 L is released at sea-level conditions of 745 torr…

A: According to the ideal gas equation, PV = nRT where P, V, n, R and T are the pressure, volume,…

Q: A sample of propane gas, C3H8, was collected over water at 22.5 ºC and 880. torr. The volume of the…

A:

Q: A balloon is filled with 2 litters of air at sea level. If the ballon is taken up a mountain so that…

A: Boyel's law gives relationship between pressure and volume of gas at fixed temperature and amount of…

Q: A 1.00-L gas sample at 100.°C and 650. torr contains 53.0% helium and 47.0% xenon by mass. What are…

A: Formula that we use: 1. pi=xptotal     where pi=partial pressure of the gas, x=mole fraction of that…

Q: A gas-filled weather balloon with a volume of 63.0 L is released at sea-level conditions of 725 torr…

A:

Q: a scuba diver exhales 1.85 L of air while swimming at a depth of 65.70 m where the sum of…

A:

Q: The total pressure of a mixture of 64.0 g of oxygen and 10.0 g of hydrogen contained in a 10.0 L…

A: Given :-  Mass of oxygen = 64.0 g  Mass of hydrogen = 10.0 g  Volume = 10.0 L  Temperature = 200°C…

Q: A 1.00-L gas sample at 100.°C and 500. torr contains 53.0% helium and 47.0% xenon by mass. What are…

A:

Q: An underwater research station with a volume of 2.00x107 L needs a delivery of air that completely…

A:

Q: A chemist weighed out 5.14 gm of a mixture containing unknown amounts of BaO (s) and CaO(s) and…

A: Given values are the following. Pinitial of CO2=750 torr=750760 atm=0.987 atmPfinal of CO2=230…

Q: A weather balloon filled with helium is launched in Alaska on a clear day when the temperature is…

A: We have initial temperature as -19°C , pressure as 758 torr, volume as 75 L, we have to calculate…

Q: A sample of Ar gas occupies a volume of 1.5 L at 135oC and a pressure of 1.0 atm.  Determine the…

A: According to Charles Law Formula, “When the pressure on a sample of a dry gas is held constant, the…

Q: A helium balloon at sea level has a volume of 2.10 L at 0.998 atm and 36.1oC. If it is released and…

A: We have given that  Initial volume of He gas= V1 = 2.10L Initial pressure of He gas=P1 = 0.998atm…

Q: A weather balloon is launched and attains a height of 120,000 feet before bursting. At the moment…

A: Boyle’s law is a gas law which states that the pressure exerted by a gas (of a given mass, kept at a…

Q: A high altitude balloon is filled with 1.41x10 ^4 L of hydrogen at a temperature of 21 degrees…

A: The expression and the formula needed for the calculation of the final volume of the balloon is…

Q: A 3.00-L gas sample at 100. ̊C and 600. torr contains55.0% helium and 45.0% xenon by mass. What are…

A:

Q: The pressure in car tires is often measured in pounds per square inch (lb/in.2), with the…

A:

Q: a sample of NH3 is added to an initially evacuated 2.00L flask at 125 degree celsius, until the…

A: The balanced reaction of ammonia and oxygen can be given as

Q: Three glass bulbs, joined by closed stopcocks, have the following volumes and initial pressures of…

A:

Q: At a certain temperature 65.2 mL of air, which is approximately 78% nitrogen, 21% oxygen and 1%…

A: Given : Initial volume of air = 65.2 mL Initial pressure of air = 105.3 KPa And final volume of air…

Q: A 458.8-ml sample of helium exertsa pressure of 668.8 torr at 25.9 °C. At what temperature in °C…

A: Gases expand supplying temperature. Particles of gases have weak binding forces. Gas particles are…

Q: A helium-filled balloon used in long-distance flying contains 420,000 ft3 (1.2  107 L) of helium.…

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

Q: 238.15L of gas at 841.5 torr and 85.1°C is heated until the temperature reaches 134.1°C.  and the…

A: According to the ideal gas law, the volume of a gas is directly proportional to the number of moles…

Q: At a pressure of 250 torr, a gas occupies 8.2 L. If the pressure is lowered to 113 torr, what would…

A: Given     Initial Pressure  ( P1 )    = 250 torr     Initial Volume   ( V1  )   = 8.2 Liter    Final…

Q: A 40.0 L tank of ammonia has a pressure of 0.13atm. Calculate the volume of the ammonia if its…

A: Given- Initial Volume of tank(V1) =  40.0 L Initial Pressure of tank(P1) = 0.13atm Final pressure of…

Q: A sample of NaNO3 is partially decomposed by heating, producing O2 gas that is collected safely over…

A: When a gas is collected over water, some water vapors are also present along with the gas. In this…

Q: A 0.0733 L balloon contains 0.584 grams of iodine gas, I2, at a pressure of 93.6 kPa. What is the…

A: Given that,  Volume of balloon V = 0.0733 L Weight of iodine gas in balloon w = 0.584 g Pressure of…

Q: A weather balloon is filled with 0.295 m3 of helium on the ground at 18 degrees Celsius and 756…

A: According to combined gas law for an ideal gas with the same number of moles at two different…

Q: A helium filled weather balloon has a volume of 502L at 14.9 degrees Celsius and 751mmHg. It is…

A: From the combined gas law we know , (P1V1)/T1 = (P2V2)/T2 Where P1 = Initial pressure of system P2 =…

Q: A weather balloon is filled with helium that occupies a volume of 5.00 X 104 L at 0.995 atm and…

A: A helium balloon before releasing, P1 = 0.995 atm V1 = 5×104 L T1  = 32 + 273.15 = 305.15 K…

Q: What is the volume of a 189.5g sample of NO2if the pressure is 1.127atm and the temperature of the…

A:

Q: A high altitude balloon is filled with 2.73 x 104 L of hydrogen at a temperature of 23.0 °C and a…

A: Given: Initial volume of balloon = 2.73 x 104 L  Initial temperature of balloon = 23.0 °C Initial…

Q: A sample of an ideal gas at 1.00 bar and a volume of 1.91 L1.91 L was placed in a weighted balloon…

A: According to the Boyle’s law, “at constant temperature and number of moles, the pressure of the gas…

Q: An expandable balloon filled with 100.0 L of helium at 750 torr and 20°C is launched from ground…

A: As per the given data in the question,P1 = 750 torr; V1 = 100.0 L; T1 = 20 + 273 = 293 KP1 = 190…

Q: A helium-filled balloon at sea level has a volume of 2.1 L at 0.998 atm and 36 oC . If it is…

A: The ideal gas equation is given as: PV=nRT

Q: A sample of propane gas, C3H8, was collected over water at 22.5 ºC and 630. torr. The volume of the…

A: From given Temperature = 22.5℃ =(22.5+273)K = 295.5K  Total pressure = 630 torr Total pressure =…

Q: A weather balloon is inflated to a volume of 24.5 L at a pressure of 750 Torr and a temperature of…

A: The Charles’s law may be stated as the unique case of ideal gas in which the species volume is…

Q: Calculate the final pressure in torr when the volume of a gas 750 ml at 29.7psi is released into a 2…

A: From Boyle’s Law that states that at a constant temperature the pressure of the given mass of an…

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.