A 0.68 gram sample of a volatile liquid was heated to 358 K. The gas occupied 265 mL of space at a pressure of 0.95 atm. What is the molecular weight of this gas? PV = nRT and R = 0.082 atmL/moleK. (Make sure that all your units agree/match R

Q: An empty gas syringe weighed 58.63. When it was filled with 60.0 cm3 of an unknown gas at 100 kPa…

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Q: A mixture contains O2 at 800. torr pressure, F2 at 500. torr pressure, and Cl2 at 800. torr…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: please help me. double and triple check your answers, previous tutors got it wrong.

A: The mole fraction of C2H4O2 is calculated as,

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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A: Convert 174○C into Kelvin using the given unit conversion.

Q: The molar mass of Freon-11 gas sample weighing 0.597 g and occupies 100 mL at 95oC and 1.32 atm. is:…

A: In this question, given that Mass of gas =0.597g Volume of gas= 100ml Temperature =95oC Pressure of…

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Q: Five grams of nitrogen gas at an initial pressure of 3.0 atm and at 20∘C undergo an isobaric…

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Q: A glass vessel weighs 40.1305 g when clean, dry, and evacuated; it weighs 138.2410 g when filled…

A: Given that,  Weight of empty glass vessel = 40.1305g Weight of vessel when filled with water =…

Q: You are working in an oil refinery. Where you use hydrocarbon gases like methane (CHA), ethane (CH),…

A: Partial Pressure is defined as if a container filled with more than one gas, each gas exerts…

Q: If a gas occupies 88.0 L at 30.0 kPa, what volume will it occupy at 90.0 kPa,

A:

Q: A 1.25-g gas sample occupies 663 mL at 25 °C and 1.00 atm. What is the molar mass of the gas?a)…

A: Pressure of the gas (P) = 1 atm Volume of the gas (V) = 0.663 L Temperature of the gas (T) = 298 K…

Q: Acetylene gas can be produced by slowly reacting calcium carbide with water. CaC2(s) + 2H2O(l) ➡…

A: The question deals with the mole concept and role of limiting reagent, a substance which acts as a…

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A: Volume can be converted to mass using density. The equation is; density=massvolume Ideal gas…

Q: What is the difference between effusion and diffusion? A) Diffusion separates gases, and effusion…

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Q: A 1.25g gas sample occupies 663ml at 25.0C and 1.00 atm. What is the molar mass of the gas

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Q: At 25°C and 760 mm of Hg pressure a gas occupies 600ml volume. What will be its pressure at a height…

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Q: Calculate the mole fraction and partial pressure of each gas and the total pressure in the tank.

A: First, the moles of dinitrogen difluoride gas and sulfur hexafluoride gas are determined by using…

Q: What is the volume, in liters, of 4.00 molesmoles of methane ga

A: From ideal gas equation  P V = n R T  where P = Pressure of the gas = 2 atm  V  = Volume of gas =…

Q: The normal respiratory rate for a human being is 15 breaths per minute.  If the average volume of…

A: Given data-  Volume of air in each breathe (V) = 500mL Temperature (T) = 210C = 294K Pressure (P) =…

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Q: What is the molar mass of a gas if a 0.227 g sample occupies 135 mL at 25 °C and 68.5 kPa? * O 191…

A: Substituting the given values in proper units in the ideal gas equation, the number of moles of the…

Q: Calculate the partial pressure of each component in a mixture of gases contains 3.50 g N2, 2.50 g…

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A: Given: Volume of tank = 10.0 L Temperature = 0.6 oC Mass of sulfur hexafluoride i.e. SF6 = 3.23 g.…

Q: A 335 mL sample of Oxygen gas at 25oC is heated to 50.0oC. If the pressure remains constant, what is…

A: GIVEN :  Initial volume of gas = V1 = 335 mL Initial temperature of gas T1 = 25 degree C = 25 +…

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A: Mole fraction can be calculated from the individual moles and total moles of gases present.

Q: determine 1) the limiting reagent, 2) the moles of each reactant left over, and 3) volume (in L) of…

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Q: 5. There are 1.07 X 10³ moles of gas molecules contained in a CO2 cartridge under 5.0-atm of…

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A: Given the concentration of SO2 in the air sample = 320 μg/m3  Temperature, T = 27+273.15 = 300.15 K…

Q: 15.0 L of an ideal gas at 298.0 K and 3.36 bar are heated to 350.0 K with a new pressure of 4.40…

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Q: A sealed container holding 0.0255 L0.0255 L of an ideal gas at 99.526 kPa99.526 kPa and 73 °C73 °C…

A: According to ideal gas equation  PV = nRT  Now volume remains constant,  P/ T = constant P1/ T1 =…

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…

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…

A: Mole fraction is defined as number of moles of solute divided by total number of moles of solution.…

Q: What is the initial volume of a perfect gas sample at 25 °C to be used in order to reduce the sample…

A: Introduction The initial volume can be calculated by the application of Charles's Law. When pressure…

Q: H.W. Qi -a |/ How many kilograms of (O2) are contained in a tank whose volume is (56.6 Liters) where…

A:

Q: A 335 mL sample of Oxygen gas at 25oC is heated to 50.0oC. If the pressure remains constant, what is…

A: Given, Initial Volume = 335 mL  Initial Temperature = 25.0°C  Final temperature = 50.0 °C  Final…

Q: The mole fraction of He in a He/Ne mixture at 300 K is 0.40. If the total pressure is 1.2 atm,…

A: The volume can be calculated as: V=nRTP   =5×0.0821 atm·mol/L·K×300 K1.2 atm   =102.6 L

Q: How many moles of hydrogen gas will be produced from mixing 5g of Zn and 50mL of 2N HCl solution?…

A: AT STP 1 MOL OF A GAS HAVE 22.4 L VOLUME,WE WILL USE THIS.

Q: 5. A McLeod gauge measures low gas pressures by compressing known volume of the gas at constant…

A: Given: Initial volume (V1) = 345 cc Final volume (V2) = 0.0457 cc Final pressure (P2) = 2.51 pKa…

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:…

Q: 1. To experiment with gas pressure and the ideal gas law, a student uses an open- ended manometer…

A: Given: Volume of container = 7.2 L Temperature of container = 10 oC = 283.15 K Mass of methane = 7.2…

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.