You fill a balloon with helium gas to a volume of 3.68 L at 23°C and 789 mmHg. What would the volume of helium be if its pressure changed to 632 mmHg but the temperature was unchanged?

Q: 2. If 1.0 x 103 g uranium metal is converted to gaseous UF6, calculate the pressure of UF6 at 62°C…

A: The combined gas legislation incorporates three gas legislation: the law of Boyle, Charles' law and…

Q: 1. Calculate the pressure of 320 grams of nitrogen gas, N2, at 250°C in a 15 L container.

A:

Q: What is the density of a sample of argon gas at 55 °C and 765 mmHg?a) 2.99 g/Lb) 1.13 * 103 g/Lc)…

A: Relation between molar mass and density- Ideal gas equation is, PV= nRT Where, P=pressure, V=Volume,…

Q: What volume is occupied by 0.118 mol of helium gas at a pressure of 0.97 atm and a temperature of…

A: The volume occupied by the helium gas can be calculated by the ideal gas equation as follow: In…

Q: A 285-mL flask contains pure helium at a pressure of 743 torr A second flask with a volume of 470 mL…

A:

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: What is the partial pressure of oxygen if the total pressure of wet gas is 705 mmHg, and the oxygen…

A:

Q: If a balloon at 275 kelvins decreases in volume from 3.5 liters to 3.55 liters, what will its new…

A: The new temperature has to be calculated, Given: V1=3.5 L V2=3.55 L T1=275 K

Q: A sample of hydrogen gas at 282 K experiences a change in volume from 3.79 L to 3.65 L. If its new…

A: Recall the following expression          P1V1T1=P2V2T2Here initial pressure of hydrogen gas is P1atm…

Q: What volume is occupied by 12.5 g of argon gas at a pressure of 1.05 atm and a temperature of 322 K?…

A: Given: volume of Ar = 12.5 g pressure of Ar = 1.05 atm temperature of Ar = 322 K volume of He =…

Q: What volume is occupied by 20.3 g of argon gas at a pressure of 1.47 atm and a temperature of 449 K?…

A: According to ideal gas equation, PV = nRT Therefore, Assuming this to be an ideal gas , The volume…

Q: the oxygen gas emitted from an aquatic plant during photosynthesis is collected over water at a…

A: Answer :-  pOxygen = 720.2 (mmHg) The partial pressure of the oxygen gas = 720.2 mmHg…

Q: What volume of hydrogen at 27 °C and 723 torr may be prepared by the reaction of 8.88 g of gallium…

A: Given:

Q: If you have a barometric pressure of 200 mm Hg, what is the partial pressure of oxygen in the air?

A: Mass percentages of gases in atmosphere: CO2= 0.04%   O2= 22.83%  N2= 75.33%  H2O= 1.8% The partial…

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 methane ch4 occupies a volume of 275 ml and exerts a pressure of 872 mmHg if the volume…

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

Q: 1atm = 101.325kPa = 14.7psi = 760mmHg = 160 torr = 29.92 in HgA   chemist collects 59.0mL of SO 2…

A: According to Boyl's law, at a constant temperature, the pressure (P) is inversely proportional to…

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

A: To solve this problem we will use Stoichiometry of balanced chemical equation .  First we will find…

Q: If some neon gas at 121,000 Pa were allowed to expand from 37 mL to 60 mL without changing the…

A: From the Boyles gas law, we know,     (At constant temperature)

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

A:

Q: A bacterial culture isolated from sewage produced 85.1 mL of methane, CH4, at 32°C and 751 mmHg.…

A: Given: The volume of methane at 32 oC and 751 mmHg pressure = 85.1 mL We have to calculate the…

Q: A sample of xenon gas occupies a volume of 8.94 L8.94 L at 435 K. If the pressure remains constant,…

A: Initial volume, V1 = 8.94 L Initial temperature, T1 = 435 K Final volume, V2 = 5.76 L Final…

Q: How much potassium chlorate is needed to produce 20.0 mLmL  of oxygen gas at 700. mmHgmmHg   and…

A: Mole of the gas is  n = PV/RT

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: The volume of a sample of hydrogen gas was decreased from 11.09 L to 4.38 L at constant temperature.…

A: Boyle's law This law states that the absolute pressure exerted by a given mass of an ideal gas is…

Q: What volume of hydrogen at 27 °C and 723 torr may be prepared by the reaction of 8.88 g of gallium…

A:

Q: A balloon originally had a volume of 0.439 L at 44 Celcius and a pressure of 729 torr. To what…

A: Given: Initial volume V1=0.439 LFinal volume V2=378 mL                             =378 mL×10-3 LmL…

Q: A 2.43 L volume of hydrogen measured at −150. °C is warmed to 100.°C. Calculate the volume (in L) of…

A: Given: Initial Volume V1 = 2.43 L Initial Temperature T1 = -150 oC= 123 K Final Temperature T2 = 100…

Q: A sample of hydrogen fluoride gas occupies 1250 mL at STP. What is the pressure in mmHg if the…

A: P1 = 1 atmT1= 273 KV1= 1250 mLP2=?T2= 300oC =573 KV2= 255 mL

Q: What pressure in mmHg is required to contain 0.029 moles of nitrogen gas in a 3.8 L container at a…

A: Given : Moles of gas = 0.029 mol. Volume of flask = 3.8 L  And temperature of gas = 20.0 oC

Q: If the temperature of 179.6 L of a gas at 64.9 C falls by 7.2 C, what is the new volume of the gas…

A: We know, at constant pressure; V1 / T1 = V2 / T2 where, V1 = initial volume T1 = initial temperature…

Q: If a mass of nitrogen gas occupies a volume of 4 liters at 720 torr, what pressure will this same…

A: Given P1 = 720 torr V1 = 4 litre P2 = ? V2 = 3.9 litre

Q: What is the density of a sample of argon gas at 68 ∘C and 837 mmHg?

A:

Q: At 618 mm Hg, a sample of nitrogen gas occupies 490 mL.  What volume does the gas occupy if the…

A: We know Boyle's Law states that, "The absolute pressure(P) exerted by a given mass of an ideal gas…

Q: What is the corrected atmospheric pressure (in atmospheres) inside a buret if the room pressure is…

A: Given that : Room pressure = 56 in Hg 1 in Hg = 25.4 mm Hg So, 56 in Hg = 1422.4 mm Hg   Water level…

Q: If the pressure of 1.50 L of hydrogen gas at 100 °C decreases from 0.500 atm to 0.115 atm, what is…

A: Boyle's law : It sates that " at constant temperature the pressure  of certain mass of gas is…

Q: What is the pressure in the room, if the 275 ml flask contains 46.2 grams of oxygen at 88.5.F, and…

A: We can apply ideal gas equation here, That is, PV = nRT Where, P = pressure inside flask V = volume…

Q: A sample of nitrogen has a volume of 4.12 L at 1,591 mmHg and 193 Celsius. What volume will it…

A:

Q: A 1.53-L sample of gaseous sulfur dioxide has a pressure of 5600 Pascals. If the pressure is changed…

A: Sulfur dioxide gas Initial volume of sample = V1 = 1.53 L Initial pressure of gas = P1= 5600 Pascals…

Q: What is the new volume (in L) of an 34.7 L sample of carbon monoxide, CO, if the pressure changed…

A: In accordance with Boyle's law, the pressure of the gas varies inversely with the volume of the gas,…

Q: What pressure was exerted on the inflated beach ball for it to change its volume from 25.0-liters at…

A:

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

A: N₂ (g) + 3 H₂ (g) → 2 NH₃ (g)  According to the above reaction 1 mole of Nitrogen will react with 3…

Q: The volume of a sample of hydrogen gas was decreased from 14.68 L to 7.97 L at constant temperature.…

A: Given :  initial volume = 14.68 L  final volume = 7.97 L  final pressure = 8.59 atm  To calculate :…

Q: Ammonia gas occupies the volume of 450. mL at a pressure of 720. mmHg. What would be the volume it…

A:

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

A:

Q: To what temperature must it be heated to raise its volume to 1300 L

A: Given :- Initial volume = 930 L   Initial temperature = 13oC Final volume = 1300 L  To find = Final…

Q: In a mixture of helium and chlorine, occupying a volume of 12.8 L at 605.6 mmHg and 21.6°C, it is…

A: We have given that  In a mixture of helium and chlorine, occupying a volume of 12.8 L at 605.6 mmHg…

Q: A sample of hydrogen fluoride gas occupies 1250 mL at STP.  What is the pressure in mmHg if the…

A: We will use the ideal Gas Equation for solving this problem.

Q: A bacterial culture isolated from sewage produced 87.0 mL of methane, CH4, at 33°C and 751 mmHg.…

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.