A flask weighs 50.1305g when clean, dry, evacuated, 150.2410g when filled with water (density = 1g/ml) and 50.5477g when filled with a gaseous substance at 575.4 torr and 97°C. What is the molar mass (g/mol) of the gas? [R = 0.082 L.atm/mol. K]

Q: The Oxygen Room  A room with dimensions 7.00m×8.00m×2.50m7.00m×8.00m×2.50m is to be filled with…

A: Given, Temperature = 22.0°C = 22.0+273 =295K   Pressure = 1.0 atm  Volume of oxygen is equal to the…

Q: C6H8O7(aq)     +      3 NaHCO3(aq)    →    Na3C6H5O7(aq)    +    3 H2O(l)     +     3 CO2(g)  0.785…

A: Use ideal gas equation:

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A: Answer  Calculate molar mass of gas   Gas equation   PV   =    nRT…

Q: What is the molar mass of 2.6 g of a gas that occupies a volume of 680 mL; 0.85 atm and 28oC?

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Q: A gas mixture contains O2, N2, and Ar at partial pressures of 125, 175, and 225 mm Hg, respectively.…

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Q: Consider the reaction for the synthesis of nitric acid:3 NO2( g) + H2O(l) → 2 HNO3(aq) + NO( g)(a)…

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Q: What is the molecular weight of a gas if a 27.0 g sample has a pressure of 836 mm Hg at 25.0 oC  in…

A: Given, mass of a sample of gas w =27.0 gpressure of the gas P =836 mm Hg =1.1 atm ( 1 atm =760…

Q: 1. What is the volume in liters (L) of 2 moles of an ideal gas at 25°C and 790 mmHg? (remember that…

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Q: What volume would 50.0 g of propane, C3HS, occupy at 1.40 x 102°C under a pressure of 1.82 x 10…

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A: Given- Volume (V) of flask=213 mL Temperature =100.0°C Pressure=754 torr Mass of flask+gas=78.416 g…

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A:

Q: Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric…

A: Given Temperature = 25 oC = (273+25)K = 298 K Pressure = 705 torr = 705/760 = 0.927 atm Volume = 285…

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A: Given:Mass of H2O2 = 0.11 g.Volume of flask = 2.5 L.Temperature = 25 oC = 298 K.Chemical reaction of…

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A: The balanced equation of the reaction is-

Q: What is the total pressure in a tank (in atm) if it contains 699 mm Hg of He, 11.2 psi of Ne, and…

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Q: Consider the following reaction for the combustion of octane, C8H18: 2C3 H18 (1) + 2502(9) → 16CO2…

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Q: 1. Write a balanced chemical equation, including physical state symbols, for the decomposition of…

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Q: mix 10 liters of C2H6 with 200 liters of ambient air and ignite the mixture a) Write the chemical…

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Q: If a 0.614g sample of gas maintains a pressure of 238 mmHg when contained in a 1.0L flask at 0.0…

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Q: bacterial culture isolated from sewage produced 35.5 mL of methane gas, CH4, at 31.0 oC and 753…

A: Use ideal gas equation  PV=nRT Calculate mole of bas  Then  Mole= volume at stp÷22.4 Volume=31.1ml

Q: 12. Calculate the molar mass of a gaseous substance if 0.158 g of the gas occupies 31.7 mL at STP.

A: A numerical problem based on mole concept, which is to be accomplished.

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Q: Which of the following is a mathematical expression of the Ideal Gas Law, using the symbols commonly…

A: Ideal gas laws are used to relates the four independent physical properties of a gas at any time.

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A: Given, Partial pressure of methane = 0.175 atmPartial pressure of oxygen = 0.250 atmVolume, V = 10.5…

Q: What is the molar mass of 2.6 g of a gas that occupies a volume of 680 mL ;0.85 atm and 28°C?

A: We can use ideal gas equation to calculate the molar mass of the gas. The ideal gas equation is,…

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A: 676.31 Liter CO2 will be produced.

Q: A syringe containing 1.47 mLmL of oxygen gas is cooled from 94.5 ∘C∘C to 0.8 ∘C∘C. What is the final…

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Q: Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric…

A:

Q: What is the mole fraction of N2 if a flask contains a mixture of 1.11 g H2 gas (H = 1.01 g/mol) and…

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A: Given that: Density of Liquid CO2 = 0.80g/mL Volume of life raft = 500L Temperature = 21°C = 294K…

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Q: What is the molar mass of a gas that has a sample mass of 3.17 g and occupies a volume of 548 mL at…

A: Mass of gas sample (mgas) = 3.17 g Volume occupied by sample (Vgas) = 548 mL or 0.548 L Conversion:…

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.