a sealed rigid vessel is filled with helium. at room temperature (25 degrees Celcius), the pressure inside this vessel is 1078 torr. calculate the pressure (a.) outside on a hot summer day, at 35 degrees Celcius. and (b.) in an ice-water bath at 0.0 degrees Celcius

Q: A 275-mL flask contains pure helium at a pressure of 752 torr.A second flask with a volume of 475 mL…

A: Dalton's Partial Pressures law states that the overall pressure exerted by the mixture of gasses is…

Q: A blimp is filled with 3950 kg of helium at 731 mmHg and 20oC. What is the volume of the blimp under…

A: Given information,   Mass of He = 3950 kg   Pressure = 731 mmHg   Temperature = 200C

Q: A gas is collected at 22 C and 1.17 atm. When the temperature is decreased by 2 C, what is the…

A: Given that: Initial temperature (T1) = 22°C Initial Pressure (P1) = 1.17 atm Final temperature (T2)…

Q: The hydrogen gas formed in a chemical reaction is collected over water at 30 °C at a total pressure…

A: Pressure is the physical force that is exerted on the object. The general formula of pressure is the…

Q: A sample of carbon monoxide was collected over water at a total pressure of 761 torr and a…

A: According to the Dalton’s law of partial pressure, the total pressure of a mixture of non-reacting…

Q: A piece of dry ice (solid carbon dioxide) with a mass of 28.8 gsublimes (converts from solid to gas)…

A: According to ideal gas equation,  PV = nRT V = (nRT/P) n = moles = (given mass / molecular mass)

Q: A sample of helium gas initially at 37.0 degrees C , 785 torr and was heated to 58.0degrees C at a…

A:

Q: A sample of sulfur dioxide (1.75 L, 25 °C, 1.56 atm) is mixed with pure oxygen (2.00 L, 35 °C, 1.12…

A: A mixture of gases contain sulfur dioxide and oxygen which leads to the formation of sulfur…

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

A: Given, Temperature, T = 30°C = (273.15 + 30) K = 303.15 K Total pressure, Ptotal = 734 mmHg Volume…

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

A: Since the total pressure above the water will be due to hydrogen gas and the water vapour presents…

Q: 100 grams of a mixture of nitrogen and methane contains (31.014%) by weight of nitrogen and occupies…

A: Given: 100 g of mixture of N2 and CH4 31.014% weight of N2 by mass Volume = 0.99456 L Temperature =…

Q: two moles of chlorine gas is confined in a 0.50 L volume at 345 K. If it acts as a van der waals…

A: Given that:  Moles of Cl2 = 2 moles  Volume = 0.50 L  T = 345 K  P = ?  R = gas constant =…

Q: If the mercury in a manometer raises 30.0 millimeters due to a change in pressure, what is the…

A: Mercury manometer raises=30.0 mm Pressure (in atm)=? 1 atmosphere (atm) = 760 millimeters of Hg…

Q: neon gas exerts a pressure of 1080 torr at 25degrees celsius. what pressure would it exert at -15…

A: Give data : At T1 = 25°C = 298K, Pressure(P1) = 1080 torr = 1.421 atm Let the pressure at T2 = -15°C…

Q: A balloon that contains 0.47 L of helium at 78 °C is cooled to 16 °C, at a constant pressure. What…

A: Given, Initial volume, V1 = 0.47 L  Initial temperature, T1 = 78 °C…

Q: A helium-filled weather balloon has a volume of 774 L at 14.9°C and 753 mmHg. It is released and…

A: As you have posted two different questions and are not the sub-parts, so , here i have answered the…

Q: 17. A sample of neon occupies 105 Lat 28°C under a pressure of 985 torr. What volarne woukd the gas…

A: Using the ideal gas equation  PV = nRT  Where  P= pressure  V = volume  n = no of moles  R = gas…

Q: A weather balloon has a volume of 650 L when filled with helium at 9 ∘C at a pressure of 390 Torr.…

A: Given: Initial Volume V1 = 650 L Initial Pressure P1 = 390 torr = 0.513 atm Initial Temperature T1 =…

Q: A vessel contains 0.75litres of a gas at 45°C under a pressure 2.75torrs. Estimate the amount of the…

A:

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 human breathes about 0.50 L of air during a normal breath. Assume the conditions are at STP. What…

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Q: At what temp will a 3.00g sample of neon gas exert a pressure of 459torr in a 3.00L container? What…

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Q: The pressure of a poisonous gas inside a sealed containeris 1.47 atm at 20°C. If the barometric…

A: P1(inital pressure)=1.47atmP2(final pressure)=0.96atmT1(inital  temperature)=20∘C…

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: A 89.1 g sample of dinitrogen monoxide is confined in a 1.7 L vessel. What is the pressure (in atm)…

A: Ideal gas equation is  PV = nRT  P = pressure  V = volume  n = moles of gas = mass/mllar mass  R =…

Q: A weather balloon is filled with helium to a volume of 1000 L on the ground where the pressure is…

A: Given:       Initial condition Volume of balloon, V1=1000LPressure of ballon, P1=745…

Q: The manometer on the right shows mercury (l) with a 19 cm (190  mm) difference between the gas in…

A:

Q: A steel tank contains a mixture of Ar and He gases. If the partial pressure of helium in the tank is…

A:

Q: A sample of fluorine gas occupies 865 mL at 730 mmHg and 170 °C. Part A What is the mass of the…

A:

Q: When methane is burned in oxygen, carbon dioxide and water are formed. When 8.00 L of methane at 125…

A: It is given that methane gas is burned in oxygen to release carbon dioxide and water, and the…

Q: If a balloon filled with air has a volume of 15.0 L at 5 degree celcius, what is its volume at 75…

A: We can use the formula V1/T1=V2/T2 where, V is volume, T is temperature  Given: V1= 15 L T1 = 5…

Q: You have a sample of gas at -33 °C. You wish to increasethe rms speed by a factor of 2. To what…

A: Since the rms speed of gas is directly proportional to the square root of its temperature in K as…

Q: 5. A certain mass of oxygen was collected over water when potassium chlorate was decomposed by…

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

Q: A rigid chamber contains three gases: H,O, O, and N2 - each has the same partial pressure of 0.934…

A: Acc To Dalton law of pressurePTotal  = PH2O  + PO2   + PN2PTotal  = (0.934 + 0.934 + 0.934 )…

Q: B. Calculate the density of Freon 12, CF2CI2, at 30.0 °C and 0.954 atm.

A: Given: Pressure=0.954 atm Temperature=30+273.15K=303.15K To find: Density  Formula: PV=nRT

Q: ballon originally had a volume of 5.39 L at 317 K and a pressure of 755 mmHg. To what temperature (…

A:

Q: A flask stoppered to a volume of 50.0 mL is heated from 21.46 °C to 60.00 °C. If the intial pressure…

A: 1. Given :-  Initial temperature = 21.46°C  Final temperature = 60.00°C  Initial pressure = 762.1…

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: Boyle’s apprentice finds that the air trapped in a J tube occupies 24.8 cm³ at 1.12 atm. By adding…

A: Boyle law: According to Boyle law Absolute pressure of gas is inversely proportional to it's…

Q: An open-end mercury manometer is used to measure the pressure of a confined sample of gas at 15 °C,…

A: Here in open side mercury level is down than the gas side.So gas pressure will be less than that of…

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

A:

Q: 6. A certain mass of oxygen was collected over water when potassium chlorate was decomposed by…

A:

Q: A piece of dry ice (solid carbon dioxide) with a mass of 5.50 gis placed in a 10.0-L vessel that…

A: a) Since all the 5.5 g of solid has sublimed into gas Hence moles of CO2 gas = mass / molar mass =…

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 sample of oxygen gas is collected by displacement of water at 25 Celsius and 1.21 atm total…

A: Given: Temperature = 25oC Total Pressure = 1.21 atm Vapor pressure of H2O =23.756 mmHg To calculate:…

Q: If a sample of 4.17 L of ethane gas, C,H, at 725°C is cooled to 175°C at constant volume? pressure,…

A:

Q: A 575-mL sample of nitrogen has a pressure of 720 Torr at 27oC. a. What will be the new volume if…

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

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.