Helium is collected over water at 25°C and 1.00 atm total pressure. What total volume of gas must be collected to obtain 0.574 g helium? (At 25°C the vapor pressure of water is 23.8 torr.) Volume

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

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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 sealed 5.00 L flask is filled with xenon (131.3 g/mol), krypton (83.79 g/mol) and argon (39.95…

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Q: A 2.55 g sample of an unknown gas at 31 ∘C and 1.05 atm is stored in a 2.85 L flask. What is the…

A: First the density is determined by using density formula as shown below,

Q: If 48.070 L of gas is collected at a temperature of 20.531°C and a total pressure of 798.00 torr,…

A: The given data contains, Volume = 48.070 L. Total pressure = 798 torr. Temperature = 293.531 K

Q: Consider the reaction: 2 Ag2O(s) ---------> 4 Ag(s) + O2(g) If this reaction produces 15.8 g of…

A: Mass of Ag = 15.8 g Molar mass of Ag = 107.9 g/mol Moles = massMolar mass=15.8 g107.9 g/mol=0.146…

Q: A sample of propane gas, C3H8, was collected over water at 22.5 °C and 730. torr. The volume of the…

A: We have,  Temperature = 22.50C Pressure = 730 torr,  ( P = p(C3H8) + p(H2O) ) V = 2.80 L p(H2O) at…

Q: A 0.432 liter sample of oxygen gas is collected at 745 mmHg and 24°C. What volume (in L) will the…

A: Charles's law :-  According to this , at constant pressure the volume of certain mass of a gas is…

Q: volume

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Q: Calculate the partial pressure of hydrogen gas collected over water if partial pressure of water at…

A: Dalton's law: Dalton's law of partial pressures states that in a mixture of non-reacting gases, the…

Q: a scuba diver exhales 1.85 L of air while swimming at a depth of 65.70 m where the sum of…

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

A: Welcome to bartleby ! Introduction :  We have to calculate pressure in mmhg

Q: The total pressure of a mixture of 64.0 g of oxygen and 10.0 g of hydrogen contained in a 10.0 L…

A: Given :-  Mass of oxygen = 64.0 g  Mass of hydrogen = 10.0 g  Volume = 10.0 L  Temperature = 200°C…

Q: A 1.65 g sample of an unknown gas at 55 °C and 1.00 atm is stored in a 2.45 L flask. What is the…

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Q: A sample of gas at 1063.4 mmHg and occupying a volume of 12.08 L is transferre to a smaller…

A: Boyl's law state that at a given temperature and composition volume of gas is directly proponstional…

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: 1. Chorine is widely used to purify municipal supplies water and to treat swimming pool waters.…

A: We are authorised to solve only first three subparts of a question. Please post rest of the subparts…

Q: What are the final partial pressures

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Q: a certain gas was found to have a mass of 28.0g and occupy a volume of 22.4L at STP. What is the…

A: Given mass  of a gas is 28.0 g which occupy a volume of 22.4 L at STP . It means hear 1 mol of gas…

Q: A 1.95 g sample of an unknown gas at 67 °C and 1.05 atm is stored in a 2.05 L flask. What is the…

A: The molar mass of a chemical compound is defined as the mass of a sample of that compound divided by…

Q: A 3.35 g sample of an unknown gas at 31 °C and 1.00 atm is stored in a 1.85 L flask. What is the…

A: Given data, mass of the sample of an unknown gas=3.35 g Temperature(T)=31℃=(31+273)K =304 K…

Q: A 3.95 g sample of an unknown gas at 53 °C and 1.05 atm is stored in a 2.35 L flask. What is the…

A: Given: Mass (M) is 3.95 g Pressure (P) is 1.05 atm Volume (V) is 2.35 L Temperature (T) is 53oC To…

Q: Nitrogen and hydrogen react in the Haber process to form ammonia. All substances are in the gas…

A: Given: Pressure of N2 taken = 0.357 atm. Pressure of H2 taken = 0.81 atm. And percent yield of the…

Q: A 3.65 g sample of an unknown gas at 61 °C and 1.05 atm is stored in a 2.35 L flask. What is the…

A: We use ideal gas equation to find number of moles and then we use it for molar mass calculation.

Q: If 42.561 L of gas is collected at a temperature of 28.861°C and a total pressure of 787.00 torr,…

A: The given data contains, Volume = 42.561 L. Temperature = 301.861 K. Pressure = 787 torr =  1.035…

Q: A gas occupies 44.7 L at 2.00 ATM pressure at 27°C calculate its volume if the pressure is decreased…

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Q: There are 4.00 moles of gas in a sealed container with a volume of 3.00L. Some of the gas is removed…

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Q: At a pressure of 250 torr, a gas occupies 8.2 L. If the pressure is lowered to 113 torr, what would…

A: Given     Initial Pressure  ( P1 )    = 250 torr     Initial Volume   ( V1  )   = 8.2 Liter    Final…

Q: A fixed quantity of gas at 21 ∘C exhibits a pressure of 753 torr and occupies a volume of 5.22 LL.…

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Q: A gas occupies a volume of 17.4 L and exerts a pressure of 825 mm Hg at 35.0 °C. What volume will…

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

Q: A 3.45 g sample of an unknown gas at 43 °C and 1.10 atm is stored in a 1.85 L flask. What is the…

A: Given datas ; m = 3.45 g T = 43°C =( 43 + 273 ) K = 316 K P = 1.10 atm  V = 1.85 L Density = mass /…

Q: A 3.25 g sample of an unknown gas at 37 °C and 1.00 atm is stored in a 1.85 L flask. What is the…

A: Mass of sample = 3.25 g Volume = 1.85 L Temperature = 37 ◦C or 310.15 K Pressure = 1 atm

Q: The air in a bicycle tire is bubbled through water and collected at 25°C. If the total volume of gas…

A: Convert the given pressure in units of atm. Convert given temperature in Kelvin.

Q: Chlorine is widely used to purify municipal water supplies and to treat swimming pool waters.…

A: (a) The grams of Cl2 are in the sample is,The ideal gas equation is,

Q: A 1.95 g sample of an unknown gas at 67 °C and 1.05 atm is stored in a 2.05 L flask. What is the…

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Q: A large evacuated flask initially has a mass of 134,567 g. When the flask is filled with a gas of…

A: Mass of flask + water=1067.9 g mass of flask=134.567 g Mass of water filling the flask =…

Q: A 1.37 mol sample of xenon gas is collected at a pressure of 479 mmHg and a temperature of 6.0°C.…

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Q: A sample of NaNO3 is partially decomposed by heating, producing O2 gas that is collected safely over…

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

Q: A gas at 527 torr and 1.1 liters is allowed to expand to 4.5 liters. What is the final pressure of…

A: Given, initial pressure =527 torr initial volume of gas=1.1 L final  volume of gas=4.5 Lwe are asked…

Q: At a pressure of 740 Torr, a sample of gas occupies 5.00 L. Calculate the volume of the sample if…

A: according to  Boyles law:- the volume of a gas at constant temperature varies inversely with the…

Q: Consider the arrangement of bulbs shown in the drawing. Each of the bulbs contains a volume of gas…

A: Given that -  Partial pressure of nitrogen gas , PN2 = 695 torr  Partial pressure of neon gas , PNe…

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 3.85 g sample of an unknown gas at 73 °C and 1.05 atm is stored in a 1.35 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: 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: A 500. mL sample of a gas is collected in a laboratory at a temperature of 293K and a pressure of…

A: An ideal gas is a gas that does not have any interaction between the particles and there is a…

Q: A weather balloon is inflated to a volume of 24.5 L at a pressure of 750 Torr and a temperature of…

A: The Charles’s law may be stated as the unique case of ideal gas in which the species volume is…

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.