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 released, it rises to an altitude where the pressure and temperature are 339 mm Hg and -55oC, respectively. What is the volume of the balloon (in L)

Q: A small 4.49 L oxygen tank is pressurized to 130 atm at 22.31ºC.  What is the mass in grams of…

A: Given that volume of oxygen = 4.49 L Pressure = 130 atm Temperature = 22.31 °C = 22.31 + 273.15 =…

Q: A 15.0-L tank is filled with helium gas at a pressure of 1.00 x 102 atm. How many balloons (each…

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Q: If a gaseous mixture is made by combining 1.33 g Ar and 2.47 g Kr in an evacuated 2.50 L container…

A: When amount of Ar and Kr are added, volume remains same. So, sum of partial pressure of each gas is…

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

A:

Q: If a gaseous mixture is made by combining 4.77 g Ar and 2.34 g Kr in an evacuated 2.50 L container…

A: Pi = Xi x P Where, Pi = partial pressure of gas i,             Xi = mole fraction of gas i…

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: CH3OH can be synthesized by the following reaction. CO(g)+2H2(g)→CH3OH(g) What volume of H2 gas (in…

A: Given:Mass of CH3OH = 26.2 g.Temperature = 90 oC = 273 + 90 = 3363 KPressure = 752 mmHg = 0.9895…

Q: A sample of argon gas at 2.90 atms and 35.0 mL, is heated from 20.0°C to 50.0°C. If the pressure…

A: Convert the unit of temperature:

Q: A fire extinguisher releases 1.96 g of an unknown gas that occupies 1.00 L at STP. What is the molar…

A: Given that:                                   Mass of the unknown gas = 1.96 g…

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

A:

Q: When an evacuated 63.8-mL glass bulb is filled with a gas at 22°C and 747 mmHg, the bulb gains…

A: Given: Formulas that are used in this problem are,

Q: A balloon has a volume of 1.2 L at 25 degrees C. What is its' new volume at - 2.5 degrees C? Assume…

A: Given  V1 = 1.25 L T1= 25 °C  = 298.15 K T2=-2.5 °C = 270.65 V2 = to find

Q: If a sample of oxygen gas occupies 4200 mL at 205.0 °C and 3.82 atm, what temperature in °C will it…

A: The expression that explains the relationship between temperature, pressure and volume is as…

Q: Neon gas, Ne, at 25°C and 1.00 atm occupied a vessel whose volume was 2.67 L. What volume would this…

A:

Q: What volume of O2(g) iş consumed in the combustion of 75.6 L C3H8 (g) if both gases are measured at…

A: In the combustion reaction propane (C3H8) reacts with oxygen to form carbon dioxide and water. The…

Q: A weather balloon contains 222 L of helium at 20. °C and 760 mm Hg. What is the volume of the…

A: The different volume, pressure, and temperature of a balloon when remains at a different altitude,…

Q: If 3.47 g Ar are added to 4.74 atm He in a 2.00 L cylinder at 27.0 °C, what is the total pressure of…

A: The pressure exerted by Ar is, PV = nRTP = nRTV ......(1) No. of moles of Argon = 3.47g/(40gmol-1) =…

Q: (a) A sample of nitrogen gas occupies a volume of 3.00 L at 760 mm Hg and 0.0 °C. If the volume of…

A: The ideal gas equation is given by, P1V1T1=P2V2T2 where P is the pressure, V is the volume and T is…

Q: The hydrogen gas formed in a chemical reaction is collected over water at 30.0 °C at a total…

A: 67.  At 30°C the vapor pressure of water is 31.8 mm Hg. Simply subtract the pressure water vapor…

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

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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: If 2.00 L of gas at 20.0 degrees C and 760 mm Hg is allowed to come to 245 mmHg at 350.0°C, what is…

A: In this question ideal gas equation is used. Since number of moles is constant so, PV/T = constant

Q: What is the mass (in grams) of a CO gas sample that occupies 5.77 L at STP?

A: Given: At STP The volume of the CO gas=5.77 L Mass of CO gas=? At STP: Temperature, T=273 K…

Q: A mixture of helium and methane gases, at a total pressure of 698 mm Hg, contains 0.480 grams of…

A: Partial pressure of gas is defined as the contribution of that gas towards total pressure of the…

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: A 15.00 L vessel containing 5.65 g H2 gas at 27°C is connected by means of a valve to a 6.0 L vessel…

A: Given; Volume (V1 ) of H2  vessel = 15 L Volume (V2 ) of O2 vessel = 6 L Temperature (T) = 300K…

Q: If a gaseous mixture is made by combining 1.16 g Ar and 2.45 g Kr in an evacuated 2.50 L container…

A:

Q: A 6.35 L sample of carbon monoxide is col lected at 55.0°C and 0.892 atm. What volume will the gas…

A: Given P1 = 0.892 atm, V1 = 6.35 L,  T1 = 55°C P2 = 1.05 atm, V2 = ?, T2 = 59°C

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: 5. What volume will 400. mL of SO3 at 0°C and 760 mm Hg occupy at 110. °C when the pressure remains…

A:

Q: If a gaseous mixture is made by combining 1.29 g Ar and 2.46 g Kr in an evacuated 2.50 L container…

A: The total pressure of a mixture of two non reacting gases is given by  PtotalV = (n1+n2)RT  Ptotal =…

Q: The hydrogen gas formed in a chemical reaction is collected over water at 30.0 °C at a total…

A: Ideal gas equation, PV=nRT Where, P=pressure, V=Volume, n =number of moles R=gas constant…

Q: A gas has a volume of 0.500 L at 786 mm Hg and 57oC. What is its volume at 743 mm Hg and 27oC?

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Q: The density of NO2 in a 4.50 L tank at 760.0 torr and 25.0 °C is g/L.

A:

Q: If 4.68 g Ar are added to 4.09 atm He in a 2.00 L cylinder at 27.0 °C, what is the total pressure of…

A: no of moles Ar=4.6840                      =0.117no of moles of He , under given conditionAssuming…

Q: 5. A volume of gas inside a balloon contracts from 6O L to 55 L. The temperature of the gas before…

A: From idealngas equation  PV = nRT

Q: 8 %24 # m 7. 9 4 %23 V 2 IIO L. If a balloon containing 2.6 L of gas at 25°C is cooled to -85°C,…

A:

Q: If 2.35 g Ar are added to 4.43 atm He in a 2.00 L cylinder at 27.0 °C, what is the total pressure of…

A:

Q: A cylinder contains helium gas with a volume of 2.60L at 20°C and 768 mmHg. If the balloon ascends…

A: Given:: V1=2.60 L P1=768 mmHg P2=614 mmHg V2= ?

Q: If 3.23 g Ar are added to 4.22 atm He in a 2.00 L cylinder at 27.0 °C, what is the total pressure of…

A:

Q: If 1.52 g Ar are added to 3.41 atm He in a 2.00 L cylinder at 27.0 °C, what is the total pressure of…

A:

Q: If the balloon described in Question 10.46 is released into the air and rises to an altitude of…

A: Given Data :  1. pressure = 523 Torr  2. Temperature = 7.50 ºC = (7.50+273.15)K =…

Q: If a sample of oxygen gas occupies 0.0032 mL at 215.0 °C and 4.82 atm, what temperature in °C will…

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: CH3OH can be synthesized by the following reaction. CO(g)+2H2(g)→CH3OH(g) What volume of H2 gas (in…

A: Given, Methanol is 23.0 gT = 273 + 90 = 363 K.Pressure = 758 mmHgMolar mass of methanol is = 32 g/…

Q: Consider the formation of nitrogen dioxide from nitric oxide and oxygen:  2 NO(g) + O2(g) → 2 NO2(g)

A: The chemical reaction is : 2NO(g) + O2(g) --->  2NO2(g) According to the balanced chemical…

Q: 6. A 3.60 L sample of carbon monoxide is collected at 55 degrees * C and 0.869 atm. What volume will…

A: Combined gas law is obtained by combining Boyle's law, Charles law and Gay-Lussac's law. Pressure of…

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

A:

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 mixture of gases containing 21.0 g of N2, 106.5 g of Cl2, and 12.0 g of He at 14 oC is in a 50.0-L…

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.