A 2.00 L sample of helium originally at 25 oC and a pressure of 745 torr is allowed to expand to a volume of 3.50 L. If the final pressure is 565.0 torr, what is the final temperature (in oC) of the gas?

Q: If the pressure exerted by a gas at 25°C in a volume of 0.057 L is 3.80 atm, how many moles of gas…

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Q: A certain gas has a molar mass of 45.88 g/mol. What will be its density at STP? O 2.86 g/L O 2.24…

A: • The values provided in the question are:-  i) Molar mass of a certain gas, M = 45.88 g/mol…

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

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Q: A 1.00-L sample of argon gas at 1.00 atm is heated from 20 °C to 110 °C. If the volume remains…

A: Given data contains, Initial pressure is 1.00 atm. Initial temperature is 20°C=293.15 K. Final…

Q: a sample of hydrogen has a volume of 1.40 L at STP what pressure would the sample have if the…

A: Applying combined gas law : P1V1/T1 = P2V2/T2  where P1 is pressure at STP ; V1 = volume at STP ; T1…

Q: If a gaseous mixture is made of 2.41g of He and 2.79g of Ne in an evacuated 1.04-L container at 25…

A: The volume of a container is 1.04 L. The given weight of He is 2.41 g.The given weight of Ne is 2.79…

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: Consider a 1.53-L sample of gaseous SO2 at a pressure of 5.6 x 103Pa. If the pressure is changed to…

A: At constant temperature: P1V1 = P2V2 P1 = initial pressure; V1 = initial volume; P2 = final pressure…

Q: A mixture of carbon monoxide and helium gases, in a 71.73 L flask at 75°C, contains 5.66 grams of…

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Q: When fully inflated, a hot-air balloon has a volume of 1.6 X 105 L at an average temperature of 375…

A: Given that volume of hot-air balloon, y =1.6×105 L Pressure, P = 0.975 atm Temperature, T = 375 K…

Q: The Haber Process synthesizes ammonia at elevated temperatures and pressures. Suppose you combine…

A: Limiting Reagent is H2­ and 2730 L of NH3 will be produced in the given process.

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

A: Ideal gas law is given as: PV=nRT

Q: A sample of oxygen gas occupies a volume of 3.00 L at 0.00 oC and 2.00 atm pressure. What volume, in…

A: Given data,Initial volume of O2 (V1)=3.00LInitial pressure of O2 (P1)=2.00atmFinal pressure of O2…

Q: A 2.85-g sample of an unknown chlorofluorocarbon decomposes and produces 564 mL of chlorine gas at a…

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Q: Ethane burns in air to give  and .   What volume of  (L) is required for complete reaction with 3.0…

A: Since temperature and pressure are constant, the number of moles is directly proportional to the…

Q: A sample of argon gas occupies a volume of 866 mL at 28°C. What volume will the gas occupy at 50.7°C…

A: Answer: 931.3 mL volume occupy at 50.7°C

Q: A sample of hydrogen gas at a pressure of 718 mm Hg and a temperature of 40 °C, occupies a volume of…

A: We know that for ideal gas equation of state is :  PV = nRT or, n = PV/RT ...(1) Here, P = 718 mmHg…

Q: What are the final partial pressures

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Q: if 1.75 mol of an ideal gas has a pressure of 2.81 atm and a volume of 50.79 L, what is the…

A: According to ideal gas law, PV = nRT where P = pressure in at = 2.81 atm V = volume in L = 50.79 L n…

Q: A sample of oxygen gas occupies a volume of 2.00 L at 27 o C and 2.00 atm pressure. What volume, in…

A: Convert 2 atm pressure into mmHg.

Q: If 0.370 L of neon gas is collected over water at a temperature of 60°C and a pressure of 760 torr,…

A: GIVEN: The volume of Neon gas collected over water= 0.370 L Temperature =60°C  Pressure = 760 torr…

Q: A sample of xenon gas occupies a volume of 7.31 L at 447 K. If the pressure remains constant, at…

A: A Charles law explains the relationship between volume and temperature at constant pressure. it…

Q: A 3.95 g sample of an unknown gas at 69 °C and 1.00 atm is stored in a 1.75 L flask. What is the…

A: The ideal gas equation relates the pressure, volume, temperature, and number of moles of gases of a…

Q: If 19.91 g of CO2 is enclosed in a 1.98 L container at 60.5 °C, what pressure is it exerting on the…

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Q: A 144.6 mL sample of O2 gas at 509.6 torr is compressed at constant temperature to 87.5 mL. Predict…

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Q: If a sample of helium gas at 900 torr and 25°C is allowed to expand from 2.6 L to 5.8 L without…

A: Helium exert a pressure of 403.45 torr.

Q: If the temperature of a gas confined to such a cylinder is raised from 221°C to 635°C, what is the…

A: Since the cylinder is confined means no change in moles of gas And pressure is also given constant…

Q: If the pressure exerted by a gas at 25°C in a volume of 0.044 L is 3.81 atm, how many moles of gas…

A: The ideal gas equation is given by,                                                         PV = nRT…

Q: Consider the generic reaction: 2 A(g) + B(g)》2 C(g). If a flask initially contains 1.0 atm of A and…

A: Reaction proceeds to completion implies that almost all of the reactants are converted into product.…

Q: 7. A 2.50-L volume of hydrogen measured at –196 °C is warmed to 100 °C. Calculate the volume of the…

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Q: If the temperature of a gas confined to such a cylinder is raised from 251°C to 536°C, what is the…

A: Gas is considered to be the third state of matter. The behaviour of gases can be well explained…

Q: Heating a 6.589 g sample of an ore containing a metal sulfide, in the presence of excess oxygen,…

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Q: oxygen gas

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Q: 2 Na(s) + 2 H20 (1) → 2 NaOH (aq) + H2 (g) Calculate the mass of sodium required to produce 456 mL…

A: Given : We have to calculate the mass of Na.

Q: A sample of oxygen gas occupies 1.9 L at pressure of 1156 torr. What volume will it occupy when the…

A: 2. Given :- initial volume = 1.9 L                Initial pressure = 1156 torr                Final…

Q: Assuming no change in pressure, what is the final volume of the gas?

A: Given: V1=3.21 T1=250.0K T2=646.0K Formula used: V1T1=V2T2 The objective is to find the final volume…

Q: A 20.0 g sample of mercury(II) oxide (HgO, molar mass = 216.6 g/mol) is heated strongly, causing it…

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

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

Q: If the temperature of a gas confined to such a cylinder is raised from 272°C to 692°C, what is the…

A: At constant pressure, volume of the gas is directly proportional to its temperature. V1/T1 = V2/T2 =…

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: If the pressure exerted by a gas at 25.0oC in a volume of 0.0440 L is 3.81 atm, how many moles of…

A: The ideal gas law equation relates the pressure, volume, number of moles and the temperature…

Q: What is the mass of CH4 in a sample that occupies a volume of 16.5 L at STP?

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Q: A gas initially at 4.83 L, 1.36 atm, and 81°C undergoes a change so that its final volume and…

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Q: A 1.62 L sample of gas is warmed from 250.0 K to a final temperature of 660.0 K. Assuming no change…

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Q: A 3.65 g sample of an unknown gas at 61 ∘C and 1.00 atm is stored in a 2.05 L flask. What is the…

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Q: A 144.6 mL sample of O2 gas at 509.6 torr is compressed at constant temperature to 87.5 mL. Predict…

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Q: If 25.0 g of nitroglycerin explodes in a 10.0-L rigid container, calculate the total pressure of all…

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Q: A 200 L sample of argon was collected under a pressure of 1.00 atm. At what pressure would the…

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Q: Question is attached

A: Given information, P1 = 336 torr,   V1 = 7.92 L ,   T1= 52.0°C = (273 + 52) K = 325 K. P2 =?,  V2…

Q: A 19.50 g sample of a gas occupies a volume of 24.8 L at 22.7ºC and 748.3 mmHg.  What is its…

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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.