The volume of a sample of helium is 4.5ml at 20C and 203kpa, what will its volume be at 10C and constanct pressure?

Q: How many moles of gas is present if at 400K, its pressure is 1Mpa(1000kpa), and its volume is 5m3?

A: We have given that Temperature of gas = T = 400K Pressure = P = 1000 kPa Volume = 5 m3 = 5000 L…

Q: A gas sample is observed to exert a pressure of 600 torr when confined to a 10.0-L vessel at…

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Q: Assume the following gasses, Xe, H2, N2, CH3CH2CH2CH2CH3 and Ar all exist at 1 atmosphere and all…

A: Density of the gas is related to molar mass, pressure and the temperature by the equation below:…

Q: Find the density of Freon-11 (CFCl3) at 120oC and 1.5 atm.

A: The density of Freon-11 (CFCl3) at 120oC and 1.5 atm has to be given,

Q: 1.) Calculate the number of moles of Argon gas contained in a 4.00 dm3 container at 620. kPa and…

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Q: A gas cylinder contains 50.0 L of the gas argon when it is full. If the cylinder was at an internal…

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Q: The volume of a gas-filled balloon is 30.0 L at 40°C and 150 kPa pressure. What volume will the…

A: The combined gas law is the combination of three gas laws. Its equation is given as: P1V1T1=P2V2T2

Q: 6.3 liters of sulfur vapor, S8(g), at 753.2°C and 8.41 atm is burned in excess pure oxygen gas to…

A: Answer:- This question is answered by using the simple concept of stoichiometry which involves the…

Q: Assuming it behaves as an ideal gas, calculate the density of nitrogen, N,, at STP. density: g/L

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Q: 4 If I initially have a gas with a pressure of 945 kPa and a temperature of 35.0°C °C, what will the…

A: Gay- Lussac's law: At constant volume for a given amount of gas pressure of a gas is directly…

Q: How many moles of a gas would occupy 157 L at 132 kPa and -16.80 degrees C? Do we need to convert…

A: According to gas law PV = nRT Where, P = pressure V = volume T = temperature R = gas constant

Q: a) A certain sample of gas has a volume of 20.0 dm3 at 0oC and 1.0 atm. A plot of the experimental…

A: since you have posted 2 questions in a single session we are entitiled to answer first question…

Q: A 12.5g gas sample occupies 663ml at 25.0c and 1.00 atm what is the molar mass of the gas

A: Ideal gas law can be written as PV = nRT Where, P = pressure V = volume n = moles of gas R = Gas…

Q: A sample of gas occupies 0.575 L at 1.5 atm and 125 °C. At what pressure will its volume be 300 ml…

A: Here, P1 = 1.5 atm; V1 = 0.575 L; T1 = (273 + 125) K = 398 K P2 = unknown; V2 = 300 mL and T2 = 295…

Q: A reaction vessel contains 6 volumes of O2 and 2 volume of CH4 at a temperature of 134 °C and a…

A: Solutions Hence the final total pressure be 524.8 kpa

Q: 42. Monochloroethylene gas is used to make polyvinylchlo- ride (PVC). It has a density of 2.56 g/L…

A: Calculation for molar mass:

Q: If it takes 6,45 seconds for S,4 mL Melg) gas to ef foze through a pin hole into o vacunm now many…

A: To calculate the time taken by 31.8 mL of H2 gas to escape through a pinhole.

Q: Calculate the density of fluorine gas (in g/L) at 35.0∘∘C and 785mmHg.

A: The question is based on the concept of physical chemistry. We have to calculate density of fluorine…

Q: Compare the length of a column of mercury to that of a column of water required to produce a…

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Q: At what T will a 10.0 L gas at constant pressure be brought to if the same gas originally occupied…

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Q: What is the density of carbon dioxide gas (g/L) at -25.2°C and 91 kPa?

A: T = -25.2 oC = 247.95 K P = 91 kPa = 0.8981 atm

Q: A balloon 18.5 m in diameter is inflated with helium 21°C and the atmospheric pressure of98.7…

A: (a) Given The diameter of balloon is 18.5 m. The temperature is given as 21 C. The pressure is 98.7…

Q: 6.4 liters of sulfur vapor, S8(g), at 623.1°C and 5.66 atm is burned in excess pure oxygen gas to…

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Q: A balloon contains 30 L of helium gas at 100 kPa. What is the volume when the balloon rises to an…

A: Here given, Initial pressure (P1) = 100 KPa = 0.986923 atm (1 atm = 101.325 KPa) Initial volume (V1)…

Q: Calculate the density of propane gas at 780 torr and 40 0C.

A: Ideal gas law states that the product of volume (L) and pressure (atm) is equal to the product of…

Q: A flask containing 179 cm of hydrogen was collected under a pressure of 20.9 kPa. What pressure…

A: According to Boyle's law at constant temperature and number of moles.,  PV = Constant Or  P1V1 =…

Q: How many grams of Al203 are formed from 15.0L of 02 at 97.3 kPa and 21 degrees C according to the…

A: 113.96 grams of Al2O3 will form.

Q: A 1.00 L volume of gas at 35.0 degrees Celcius exerts a pressure of 85.5 kPa. What will the pressure…

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Q: Which of the following gas samples have the greatest average molecular speed at 25°C? A) Kr B) CH,…

A: Average molecular speed (Cavg): The average speed of the molecule can be determined by using the…

Q: A gas has a pressure of 655 kPa at 227°C. What temperature is required to decrease the pressure to…

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Q: A gas that has a volume of 28 liters, a temperature of 45 °C, and an unknown pressure has its volume…

A: The combined gas law gives a relationship between pressure, volume, and temperature which can help…

Q: 12. If 300ml of H2 at 425torr and 35°C is placed in a container of 255ml of N2 at 20°C and 320torr,…

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Q: 471 g of Ar(g) into a 100.0 L rigid cylinder at 21.33 °C, what is the resulting pressure

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Q: How much a spherical helium balloon of 10 diameter contains when the temperature is at 15°C and…

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Q: determine the root mean squared gas velocity in m/s of a gas at 98.33 celsius with a molecular…

A: Root mean squared velocity can be determined by following formula:  Vrms = (3RT/M)1/2 Where R =…

Q: What volume will a 1.0L balloon have if the temperature changes from 0ᵒC to 200ᵒC?

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Q: In a chamber, the density of O2, N2, N, O, and NO is 0.01, 0.015, 0.018, 0.007, and 0.02 kg/m³…

A: Given,Density of O2=0.01kg/m3Density of N2=0.015kg/m3Density of N=0.018kg/m3Density of…

Q: NO2 is collected in a 250-mL container at 27°C. The pressure in the container is 216 kPa, what is…

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Q: A high altitude balloon is filled with 14,100 L of hydrogen at a 21ºC and 745mmHg.  What is the…

A: Using ideal gas equation we can solve this problem.

Q: A sample of Ne gas occupies 0. 220L at 0.86 atm. What will be its volume at 29.4kPa?

A: This problem can be solved by using Boyle's law. It states that the pressure of a gas is inversely…

Q: What is the density of air at 762 mmHg and 32°C? the molar mass of gases in air is 29g/mol.( please…

A: The density of a gas can be calculated by using the ideal gas equation. The ideal gas equation is…

Q: 2 A , how long will it take to generate 23.0 L of hydrogen gas at a pressure of 27.0 atm and a…

A: Given,  Current = 8.2 A Temperature = 23 °c = 296 K Volume = 23.0 L Pressure =27.0 atm Using ideal…

Q: The pressure exerted by 4 mole of CO2 at 90°C when it occupies 1 Liters knowing that: a = 3.61 Patm…

A: d. 86.0 answer

Q: What is the temperature of 1.131 g of gaseous Cl2 in a 1.31 L container at a pressure of 92.9 kPa?…

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Q: A 50.0 cm³ sample of nitrogen gas is collected at 101.3 kPa. If the volume is reduced to 5.0 cm³,…

A: Boyle's law: The pressure (P) of a fixed mass of a gas at constant temperature, is inversely…

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.