CHEMWORK A certain flexible weather balloon contains helium gas at a volume of 855 L. Initially, the balloon is at sea level where the temperature is 25°C and the barometric pressure is 723 torr. The balloon then rises to an altitude of 6000 ft, where the pressure is 605 torr and the temperature is 15°C. What is the change in volume of the balloon (in L) as it ascends from sea level to 6000 ft? Submit Submit Answer Try Another Version 1 item attempt remaining

Q: White phosphorus melts and then vaporizes at high tempera-ture. The gas effuses at a rate that is…

A: The Scottish physical chemist Thomas Graham gives direct relation between rate of effusion of gas…

Q: A flask that can withstand an internal pressure of 2500 torr, but no more, is filled with a gas at…

A: Given data is as follows: The final pressure of the flask P2 = 2500 torr The final temperature of…

Q: delete 4. 8. 5. 6. 7. R. P. E. enter H. return B alt MOSISO command option

A: Temperature is constant so  P1V1 +P2V2 = PV

Q: A very flexible helium-filled balloon is released from the ground into the air at 20. °C. The…

A:

Q: A given mass of a gas occupies 13200 cm3 at 28°C. What volume will it occupy if the temperature is…

A:

Q: You placed 6.35 g of a mixture containing unknown amounts of BaO(s) and MgO(s) in a 3.50-L flask…

A: Number of moles of CO2 in the flask initially is calculated using Ideal Gas equation as follows,1…

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: At 45o C, a gas cylinder containing hydrogen has an internal volume and pressure of 62.0 L and…

A: According to Boyle's law: The pressure of an ideal gas at constant temperature is inversely…

Q: The combustion of octane, C8H18 , proceeds according to the reaction shown. 2C8H18(I) + 25 O2…

A: The number of moles of carbon dioxide, produced in the reaction, is calculated as shown below where…

Q: How many grams of methane, CH4 are in a 2,375 mL tank at -60.8 °C and 908 kP. Just put in the…

A: Given: volume=2375 mL             =2.375 LNote: 1 mL=0.001 LPressure=908 kPa                =8.9612…

Q: When heated, KClO3 decomposes to form KCl and oxygen gas according to the following equation: 2KCl03…

A:

Q: The combustion of octane, C, H, proceeds according to the reaetion shown. 18 2 C,H18() + 25 O,(g) →…

A:

Q: For a certain hydrocarbon gas, 20.0 mg exerts a pressure of 24.7 torr in a 500-cm3 vessel at 25…

A: Ideal gas equation is  PV =nRT  P = pressure of hydrocarbon gas = 24.7 torr = 0.0325 atm  V = volume…

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: At 35.0 °C, a 12.0 L vessel is filled with 6.25 moles of Gas A and 6.00 moles of Gas B. What is the…

A:

Q: A gaseous hydrogen- and carbon-containing compound is decomposed and found to contain 82.66% carbon…

A:

Q: The combustion of octane, C8H18,C8H18, proceeds according to the reaction shown.…

A:

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

A: Given: The standard pressure at the sea level, P1 = 1 atm The volume of the balloon, V1 = 2 L The…

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 reaction between liquid reactants takes place at 0 °C in a sealed, evacuated vessel with a…

A:

Q: Aluminum, an active metal, reacts with hydrochloric acid in a single displacement reaction.  If I…

A: The reaction taking place between is,

Q: If a gaseous mixture is made by combining 2.56 g Ar2.56 g Ar and 3.64 g Kr3.64 g Kr in an evacuated…

A: Moles of Ar = mass of Ar / Atomic mass of Ar = 2.56 / 40 = 0.064  and moles of Kr = mass of Kr /…

Q: At 25.0 ° C, a 10.00 L vessel is filled with 5.25 moles of Gas A and 2.10 moles of Gas B. What is…

A:

Q: Some N₂ gas is mixed with some O₂ gas, and the sketch below shows a representative sample of the…

A: Given-> Total pressure (P) = 200 torr

Q: You placed 6.35 g of a mixture containing unknown amounts of BaO(s) and MgO(s) in a 3.50-L flask…

A: The total mass of the mixture = 6.35g Consider the mass of BaO and MgO in the unknown sample be 'x'…

Q: At 25.0° C, a 10.00 L vessel is filled with 5.25 moles of Gas A and 5.00 moles of Gas B. What is the…

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

Q: You placed 6.35 g of a mixture containing unknown amounts of BaO(s) and MgO(s) in a 3.50-L flask…

A: Convert the given temperature that is 30 degree Celsius in kelvin as shown follows:T (K) = (30 +…

Q: You placed 6.35 g of a mixture containing unknown amounts of BaO(s) and MgO(s) in a 3.50-L flask…

A: Given the total mass of BaO and MgO = 6.35 g Let number of moles of BaO = a number of moles of MgO =…

Q: A backpacker carries an empty, soft-plastic, water container into the mountains. Its initial volume…

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

Q: The combustion of octane, C8H18, proceeds according to the reaction shown.…

A: The combustion reaction of octane, C8H18 is -   2C8H18(l) + 25O2(g)---> 16CO2(g) + 18H2O(l) From…

Q: An atmospheric chemist studying the pollutant SO2 places a mixture of SO2 and O2 in a 1.14−L…

A: The volume and pressure of mixture of SO2 and O2 is 1.14 L and 1.98 atm, respectively. The…

Q: Is the relationship between pressure and temperature direct or inverse? Explain

A:

Q: under thermal decomposition, potassium chlorate degrades into potassium chloride and oxygen by the…

A:

Q: The organic compound di-n-butyl phthalate, C16H„O4(1), is sometimes used as a low-density (1.046 g -…

A: Low density manometer :-        An open tube manometer measures the gauge pressure, P=h( d1÷ d2 )…

Q: In 1783, Jacques Charles launched his first balloon filled with hydrogen gas, which he chose because…

A:

Q: The industrial production of nitric acid (HNO3) is a multistep process. The first step is the…

A: The reaction taking place is given as, => NH3 + O2 ------> NO + H2O Given : Temperature = 33…

Q: What mass of potassium chloride forms when 5.25 L of chlorine gas at 0.950 atm and 293 Kelvin reacts…

A: It is given that 5.25 L of chlorine gas at a pressure of 0.950 atm at 293 K is reacting with 17 g of…

Q: 1.734×10-4 mol of an unidentified gaseous substance effuses through a tiny hole in 93.2 s. A) Under…

A: According to Graham's law of effusion, the rate of effusion of a gas is inversely proportional to…

Q: The combustion of octane, C8H18 proceeds according to the reaction shown.…

A:

Q: Gas Forming Reaction A student incorrectly added the calculated amount of reactants for the…

A: 1) The approximate dimensions of quart size bag is 7" x 8" = 56 square inch. 2) The approximate…

Q: Zinc reacts with aqueous HCl to produce hydrogen gas (H2) according to the following reaction…

A:

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 student was assigned the task of determining the molar mass of an unknown gas. The student…

A: 1) mass of   density = massvolumemass = density × volumemass = 1.18 gL× 0.843 Lmass = 0.995 g mass…

Q: A sample of nitrogen gas occupies a volume of 9.82 L at 67.0°C and 347 torr. torr. f the volume of…

A: Solution : We will use the ideal gas equation in this case as initial pressure, volume, and…

Q: A 40.3 L cylinder of Ar(g) is connected to an evacuated 1855 L tank. If the temperature is held…

A: Since you have posted multiple questions , as per guidelines we can solve only one question per…

Q: what volume would it occupy at an altitude where the temperature is -52.0℃ and the pressure is…

A:

Q: Calcium carbonate decomposes due to the effect of temperature producing calcium oxide and carbon…

A: Given: Mass of calcium carbonate i.e CaCO3 decomposing = 3.1 g Volume of cylinder = 1.45 L And…

Q: The combustion of octane, C8H18, proceeds according to the reaction shown. 2C8H18(l) + 25O2(g)…

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.