Determination of the Universal Gas Constant Postlab 1. An evaluation of Rwas performed using the procedures outlined in this exercise, The barometric pressure was 735 torr and the temperature was 21.5 "C. The volume of H2(g) collected was 32.7 mL. The calculated value of Rwas 0.0817 L-atm/mol-K. a. How many grams of Mg metal were used in this determination? 0.0316 b. If the correction for the vapor pressure of water had not been performed, what would be the calculated value of R? 70.361 Incorrect c. If the syringe volume had been incorrectly read, resulting in a calculated H, volume of 30.6 ml, what would be the percent error in the calculated value of Rwith respect to the originally calculated value (0.0817 L-atm/mol-K)? 6.4 %

Q: A 4.0 liter rigid, indestructible metal can is filled with nitrogen gas at 45 °C to a pressure of…

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Q: A sample of gas in which [H2S] = 5.96 M is heated to 1400 K in a sealed vessel. After chemical…

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Q: 1) A gas mixture at 20.0°C and 2.0 atm contains 0.40 mol of H2, 0.15 mol of 02, and 0.50 mol of N2.…

A: 1- First calculate the mole fraction of H2 gas :  Total moles = ( moles of Hydrogen + moles of…

Q: Consider the following samples of gas: sample composition pressure temperature A 2.8mol Xeg 2.9atm…

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Q: One of the steps to sweeten sour gas using the Claus process is reacting hydrogen sulfide gas with…

A: the reaction is16 H2S (g) + 8 SO2 (g)  16 H2O (g) + 3 S8 (s)Given,volume of H2S= 8.40 kL = 8.40…

Q: In dry atmospheric air, the four most abundant components are N2, X = 0.808; O2, X = 0.1915; Ar, X =…

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Q: If 14.5g of calcium carbonate decomposes via the following reaction, how many liters of carbon…

A: Number of moles of Calcium carbonate can be calculated as follows: No. of moles of CaCO3= massmolar…

Q: 0.30 mol H2 (g) and 0.20 mol O2 (g) are added to a cylinder.  Before reaction, the total pressure is…

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Q: A sample of CO2 gas at 150.°C has a volume of 350. mL at 760. mm Hg. How many moles of CO2 are…

A: Ideal gases are those gases which follow ideal gas equation. The relation between pressure, volume,…

Q: 1. Use a reliable internet source to find a theoretical average value for the partial pressure of…

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Q: 143 23. Determine the temperature (in K) of 2.49 moles of gas contained in a 1.00 L vessel at a…

A: We have given that  23) n = 2.49 mole  P = 143 kPa  V = 1 L  R = 8.314 kPa.L.K-1.mole-1 T = ? 24)  V…

Q: What is the partial pressure (in atm) of CO₂ at 468.2 K in a 25.0 L fuel combustion vessel if it…

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Q: A 0.11 g of H2O2(l) decomposes to O2 (g) and H2O(g) in a 2.5L flask at 25C? What is the pressure for…

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

Q: 7. A 4.0 liter rigid, indestructible metal can is filled with nitrogen gas at 45 °C to a pressure of…

A: We would gas law to answer these questions.

Q: Suppose a 185 gram sample of hydrogen reacts as follows: 2 NO2(g) + 7 H2(g) → 2 NH3 (g) + 4 H2O(g)…

A: The balanced reaction taking place is given as, => Given: Mass of H2 reacting = 185 g. Volume of…

Q: Five grams of ethane are confined in a bulb of one liter capacity. The bulb is so weak that it will…

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Q: One of the steps to sweeten sour gas using the Claus process is reacting hydrogen sulfide gas with…

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Q: At 100 kPa and 0 °C, a 5.04 L mixture of methane (CH4) and propane (C3H8) combusts, producing 18.0 g…

A: In this question, we have to Calculate the mole fraction of each gas in the initial mixture.

Q: At 0°C a 1.00L flask contains 5.00x 10-2mol of N2and 1.50x 10-2mol of O2. Calculate the partial…

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Q: Consider the following samples of gas: sample composition pressure temperature A 2.8mol Krg 2.6atm…

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Q: While ethanol  CH3CH2OH  is produced naturally by fermentation, e.g. in beer- and wine-making,…

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Q: Calculate the pressure (in atm) of 0.456 mol O2 gas in a 5.40 L container at 50.0°C. PV = nRT R =…

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Q: One of the steps to sweeten sour gas using the Claus process is reacting hydrogen sulfide gas with…

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Q: Calculate the volume of 1.62g of Helium gas at 25.670C and 872 mmHg.  (R = 0.0821 atm.L/mol.K

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Q: 5) The system, 2H₂O(g) + 2Cl2(g) — 4HCl(g) + O₂(g), has a value of 8.00 for Kp. Initially, the…

A: Qp is the reaction quotient and is given in the same way as Kp. Qp can be measured at any point…

Q: Assume 402.46 g of dry ice (solid CO2) is placed in an empty 26.66L closed tank. Determine the…

A: Given  mass of CO2  = 402.46 gram  Molar mass of CO2 = 44.01 gram/ mole  Volume   ( V ) = 26.66…

Q: (a) A rigid tank contains 1.60 moles of helium, vwhich can be treated as an ideal gas, at a pressure…

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Q: Stoichiometry with Partial Pressure Gas jar Gas collects here Trough of water |Bee hive shelf…

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Q: A sample of gas in which [H2S] = 3.15 M is heated to 1400 K in a sealed vessel. After chemical…

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Q: What is the partial pressure of CO₂ at 468.2 K in a 25.0 L fuel combustion vessel if it contains…

A: Since you have asked multiple questions, we will solve the first question for you as per our…

Q: 1.) This reaction occurs in large test tube at 32.0oC: 2 Al (s)  + 3 H2SO4(aq) ---> 6 H2 (g)  +…

A: The balanced reaction taking place is given as, => 2 Al (s) + 3 H2SO4 (aq) -------> 6 H2 (g) +…

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.