A 1.35 g sample of an unknown gas at 43 ∘C and 1.10 atm is stored in a 1.45 L flask. What is the density of the gas? What is the molar mass of the gas?

Q: How many grams of a gas with a molar mass 146.42 g/mol would be required to occupy a 868 mL flask at…

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Q: If a sample of gas at 35.4℃ and 108.4kPa is heated until the pressure is 297.1kPa and the volume is…

A: PV=nRT is the ideal gas equation. Here , P= Pressure (in Pa) ; V = Volume (in m3) ; n= No. of moles…

Q: In a 10.00 L steel container, and at a temperature of 25.0oC, we have 76.0 g of O2(g) and 63.9 g of…

A: Given that:Volume of the container, V = 10.00 LTemperature, T = 25.0oC = 298.15 KThe container…

Q: The volume of a sample of gas measured at 26 ºC and 0.986 atm is 10.50 liters.  What final…

A: from charles law: temperature and volume are directly realted using degrees kelvin. here both…

Q: A 2.65 g2.65 g sample of an unknown gas at 73 ∘C73 ∘C and 1.00 atm1.00 atm is stored in a 2.75 L2.75…

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Q: At 30oC, a gas cylinder containing nitrogen has an internal volume and pressure of 58.5 L and 1.75 *…

A: All matter can be classified as solid, liquid and gases mainly. In these physical states of matter,…

Q: A gaseous compound has a density of 1.51 g/L at 23.9 °C and 1.24 atm. What is the molar mass of the…

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Q: If a gaseous mixture is made by combining 3.07 g Ar and 2.59 g Kr in an evacuated 2.50 L container…

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Q: A 1.92 L flask is filled with 2.52 g of some gas (molar mass 42.100g/mol) at 23.1°C. A different…

A: Given: Volume , V = 1.92 L Temperature = 23.1°C = 296.25K No. Of moles gas= 2.52g/42.1gmol-1= 0.0598…

Q: The Goodyear blimps, which frequently fly over sporting events, hold approximately 175,000 ft3 of…

A: Given,Mass of the gas = 175,000 ft3 of heliumPressure = 1 atmTemperature = 23 oC = 273.15 +23 =…

Q: A 1.00-L gas sample at 100.°C and 650. torr contains 53.0% helium and 47.0% xenon by mass. What are…

A: Formula that we use: 1. pi=xptotal     where pi=partial pressure of the gas, x=mole fraction of that…

Q: 2. A mixture of 6.0 g O2(g) and 9.0 g CH49) is placed in a 15 L vessel at 0 C. What is the partial…

A: Dear student ,   since you have posted multiple questions we will allow to solve only first question…

Q: What volume in liters does 0.137 g of O₂ occupy at 27.2 °C and 755 torr? Assume the standard…

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Q: Calculate the molar mass of an unknown gas that has a mass of 4.55g, exerts a pressure of 2.55atm,…

A: We are given gas having the mass of 4.55 gram and  it exerts a pressure of 2.55 atm and occupies a…

Q: A gaseous mixture is made by combining 3.92 g Ar and 4.57 g Kr in an evacuated 2.50 L container at…

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Q: A 3.55 g sample of an unknown gas at 23 ∘C and 1.05 atm is stored in a 3.05 L flask. What is the…

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Q: A 3.55 g sample of an unknown gas at 59 °C and 1.05 atm is stored in a 1.05 L flask. What is the…

A: a) Since mass of gas is given = 3.55 g  and volume of gas = volume of flask = 1.05 L hence density…

Q: The density of a gas is found to be 1.45 g/L at 27 degrees C and 0.900 atm. What is the molar mass…

A: The ideal gas law, that related different parameters of a gas is given as:

Q: When strongly heated, CaCO3 decomposes into carbon dioxide gas and calcium oxide. What mass of…

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Q: In a 10.00 L steel container, and at a temperature of 25.0°C, we have 76.0 g of O2(g) and 63.9 g of…

A: Given, The volume of the container, V = 10.00 LTemperature, T = 25.0oC = 298.15 KThe container…

Q: What volume does 15.0g sample of helium (He) gas at 25C and 1.66 atm occupy?

A: Calculate the number of moles of He gas nHe = WHeMHenHe = 154 molnHe = 3.75 mol   Here, n stands for…

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 flask with a volume of 3.17 L contains 9.33 grams of an unknown gas at 32.0 degrees Celsius and…

A: The ideal gas refers to a hypothetical composed of molecules. Ideal gas equation refers to the…

Q: Calculate the temperature at which a 2.00 L sample of gas at 27oC would occupy 3.00 L if its…

A: Given that =  Initial volume (V1) = 2.00 L Final volume (V2) = 3.00 L Initial temperature = 27°C =…

Q: [4] Hydrogen cyanide is prepared by the reaction: 2NH3(g) + 2CH.(g) + 30:(g) → 2HCN(g) + 6H;O(1I)…

A: As temperature and pressure are same for each gas .it can be said that 2 litre NH3 ,2 litre CH4 and…

Q: A 3.00-L gas sample at 100. ̊C and 600. torr contains55.0% helium and 45.0% xenon by mass. What are…

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Q: Ammonia is formed from nitrogen and hydrogen according to the following unbalanced equation N2 (g) +…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

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: What is the molecular weight of the gas?

A: Ideal gas equation :-  PV = nRT  P is the pressure of gas  V is the volume occupied by gas  n is the…

Q: A 5.25g sample of gas occupies a volume of 1L and exerts a pressure of 1.074atm at -4 degree…

A: An ideal gas is represented by the following expression: PV = nRT    ............ (1) where P, V, n,…

Q: What mass of NO2 is contained in a 13.0 L tank at 4.58 atm and 112°C?

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Q: A 2.35 g2.35 g sample of an unknown gas at 29 ∘C29 ∘C and 1.05 atm1.05 atm is stored in a 2.25 L2.25…

A: According to ideal gas law PV = nRT where P = pressure = 1.05 atm (given) V = volume = 2.25 L…

Q: At what temperature does 0.038665 moles of Ne in a 892.6 mL container exert a pressure of 0.767 atm?…

A: Use ideal gas law to find out the temperature. Convert the volume in liters. 892.6 mL = 0.8926 L

Q: A 3.35 g sample of an unknown gas at 23 'C and 1.10 atm is stored in a 3.05 L flask. What is the…

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Q: A gas is collected at 22.0 °C and 745.0 mm Hg. When the temperature is changed to O°C, what is the…

A: Gay Lussac's Law :-  It states that, at constant volume the pressure of fixed mass of a gas is…

Q: How many moles of gas are pressured in a 25L chamber containing a pressure of 750 mmHg at – 25 deg…

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Q: The density of a gas is found to be 1.45 g/L at 27° C and 0.900 atm. What is the molar mass of the…

A: The molar mass of the gas can be find using the formula.

Q: A 2.05 g sample of an unknown gas at 59 ∘C and 1.10 atm is stored in a 2.85 L flask. What is the…

A: Given,Mass of the sample = 2.05 gVolume is 2.85 LTemperature = 273.15 K + 59 = 33.152 KPressure =…

Q: In a 5.00L container at 25 degrees C, a mixture of gases contains 3.50g of CO, 8.56g of Cl2 and…

A: The partial pressure of any one gas in a mixture of two or more gases is calculated by using the…

Q: A 2.50 g sample of an unknown gas occupies 875 mL at 685 mm Hg and 35 C. What is the molar mass of…

A: To calculate the molar mass of the unknown gas first of all we calculate the number of moles of the…

Q: A 3.75 L sample of gas from a chemical plant is collected and analyzed st 25 degrees celisus. It is…

A: The number of moles for a given chemical species refers to the ratio of mass of the species to that…

Q: A gas sample with a mass of 11.2 g exerts a pressure of 1.05 atm at 22.0ºC and a volume of 2.79 L.…

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Q: A 30.0 L vessel contains a mixture of carbon dioxide, sulfur trioxide, oxygen, and neon gases at…

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

Q: A sample of a gas weighs 4.65 g and has a volume of 1086 mL at 765.0 torr and 21.0 °C. What is its…

A: Given data: Mass of gas = 4.65 g Volume = 1086 mL = 1.086 L Temperature = 21 oC = 294 K Total…

Q: A sample of gas of mass 3.22 g  occupies a volume of 442 mL  at 58 oC  and 0.18 atm  pressure. What…

A: The gaseous state is the state of matter with least intermolecular force of attraction between…

Q: Assuming that a 800 mg gas occupying a volume of 1,100 ml at a pressure of 1,600 mmHg and a…

A: Volume = 1100ml = 1.1L  Pressure = 1600 mmHg = 2.1052 atm  T = 75oC =  75 + 273K = 348K  Gas…

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: When 7.00 moles of gas A and 3.00 moles of gas B are combined, the total pressure exerted by the gas…

A: If individual gases and their mixture behave ideally, then we can write: Pi=xiPtotal where Pi , xi ,…

Q: A 1.05 g sample of an unknown gas at 61 "C and 1.05 atm is stored in a 2.55 L flask. What is the…

A: Mass per unit volume is known as density. S.I unit of density is g/cm3 or kg/m3. Other units of…

Q: A bulb of 138. 2 mL volume contains 0. 6946 g of gas at 756. 2 Torr and 100. 0°c, what is the molar…

A: Mole can be defined as a standard unit for measuring large quantities of very small atoms,…

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.