1. Determine the moles of "air" in the syringe at atmospheric pressure at the beginning of...
1. Determine the moles of "air" in the syringe at atmospheric pressure at the beginning of the experiment using the molar volume of gas. Assume a temperature of 298K at which the molar volume of a gas is 24.4 L/Mol.
2. Using the formula area=r2 x π calculate the piston area and express it in m2 units.
r= 0.9 cm
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1. Determine the moles of "air" in the syringe at atmospheric
pressure at the beginning of...
Instructor Name: Student Name: DATA (EXP #13): Part 1: The Action of Atmospheric Pressure Observa...
i
need part 2 and part 3 to be solved thanks please please urgent
Instructor Name: Student Name: DATA (EXP #13): Part 1: The Action of Atmospheric Pressure Observations upon immersing the can in ice-water bath: Part 2: Determination of the Molar Mass of Gases Barometric pressure (mmHg): 734.2 mm Room temperature (0 23, 6"c CO2 Natural Gas Mass of flask/stopper filled with air (g) 126 069 125.959 la 0146-16 146.9 Volume of water used to fill flask (mL) 267-nL...
Part A A syringe containing 1.35 mL of oxygen gas is cooled from 92.8 ∘C to...
Part A A syringe containing 1.35 mL of oxygen gas is cooled from 92.8 ∘C to 0.9 ∘C. What is the final volume Vf of oxygen gas? Part B A cylinder with a moveable piston contains 0.540 mol of gas and has a volume of 300 mL. What will its volume be if an additional 0.279 mol of gas is added to the cylinder? (Assume constant temperature and pressure.)
1) What volume in L is occupied by 6.15 moles of an ideal gas at a...
1) What volume in L is occupied by 6.15 moles of an ideal gas at a pressure of 4.7 bar at 298 K? 2) The molar constant volume heat capacity of sulfur hexafluoride approaches xR at high temperatures. What is x? Assume ideality. 3) 8 moles of gas is reversibly compressed from 8.3 L to 1 L at 298 K. Compute the work. 4) 1878 kg is dumped onto the top of a huge piston of surface area 1m2, and...
40. The atmospheric pressure (force per unit area) on a surface at an altitude z is due to the we...
problem 40 with parts
40. The atmospheric pressure (force per unit area) on a surface at an altitude z is due to the weight of the column of air situated above the surface. Therefore, the difference in air pressure p between the top and bottom of a cylindrical volume element of height Az and cross-section area A equals the weight of the air enclosed (density ρ times volume V-: ΑΔε times gravity g), per unit area: Let Δ、→0 to derive...
Experiment 12: Generating Hydrogen Gas Part B: Molar mass of unknown metal Unknown #: Mass of...
Experiment 12: Generating Hydrogen Gas Part B: Molar mass of unknown metal Unknown #: Mass of unknown metal (X) .29 Volume of H2 gas L mL Temperature of H; gas 20 mm к C Atmospheric pressure (see barometer) Vapor pressure of water mmHg Partial pressure of H; gas mmHg atm Using PV-nRT and your data, calculate the moles of hydrogen gas produced in the experiment: l e epl8 moles H Convert moles of hydrogen gas to moles of the metal...
A student devised an experiment to determine the molar mass of an unknown gas X. Firstly,...
A student devised an experiment to determine the molar mass of an unknown gas X. Firstly, he filled a glass gas syringe (accurate to ± 0.5 cm3 ) with 100 cm3 of air then placed a rubber seal over the nozzle and weighed the syringe. He then emptied the gas syringe, refilled it with 100 cm3 of the unknown gas X, replaced the rubber seal and reweighed the syringe. Finally, he measured the temperature of the room. He obtained the...
On a hot summer day, the density of air at atmospheric pressure at 32.5°C is 1.1242...
On a hot summer day, the density of air at atmospheric pressure at 32.5°C is 1.1242 kg/m3. (a) What is the number of moles contained in 1.00 m3 of an ideal gas at this temperature and pressure? mol (b) Avogadro's number of air molecules has a mass of 2.86 x 10-2 kg. What is the mass of 1.00 m3 of air? (Assume air is an ideal gas.) kg (c) Does the value calculated in part (b) agree with the stated...
Helium in a cylinder with a piston and initially at 23 ∘C expands at constant atmospheric...
Helium in a cylinder with a piston and initially at 23 ∘C expands at constant atmospheric pressure. Part A What is the work that the piston does on the gas if the air expands from 0.030 m3 to 0.041 m3 ? Express your answer to two significant figures and include the appropriate units. Part B How many moles of gas are in the container? Express your answer using two significant figures. Part C Suppose that the work leads to a...
(a) An ideal gas occupies a volume of 1.8 cm3 at 20°C and atmospheric pressure. Determine...
(a) An ideal gas occupies a volume of 1.8 cm3 at 20°C and atmospheric pressure. Determine the number of molecules of gas in the container. _____________ molecules (b) If the pressure of the 1.8-cm3 volume is reduced to 2.4 ✕ 10−11 Pa (an extremely good vacuum) while the temperature remains constant, how many moles of gas remain in the container? ____________ mol
(a) An ideal gas occupies a volume of 1.2 cm3 at 20°C and atmospheric pressure. Determine...
(a) An ideal gas occupies a volume of 1.2 cm3 at 20°C and atmospheric pressure. Determine the number of molecules of gas in the container. __ moleculues (b) If the pressure of the 1.2-cm3 volume is reduced to 1.6 ✕ 10−11 Pa (an extremely good vacuum) while the temperature remains constant, how many moles of gas remain in the container? __ mol
i
need part 2 and part 3 to be solved thanks please please urgent
Instructor Name: Student Name: DATA (EXP #13): Part 1: The Action of Atmospheric Pressure Observations upon immersing the can in ice-water bath: Part 2: Determination of the Molar Mass of Gases Barometric pressure (mmHg): 734.2 mm Room temperature (0 23, 6"c CO2 Natural Gas Mass of flask/stopper filled with air (g) 126 069 125.959 la 0146-16 146.9 Volume of water used to fill flask (mL) 267-nL...
problem 40 with parts
40. The atmospheric pressure (force per unit area) on a surface at an altitude z is due to the weight of the column of air situated above the surface. Therefore, the difference in air pressure p between the top and bottom of a cylindrical volume element of height Az and cross-section area A equals the weight of the air enclosed (density ρ times volume V-: ΑΔε times gravity g), per unit area: Let Δ、→0 to derive...
Experiment 12: Generating Hydrogen Gas Part B: Molar mass of unknown metal Unknown #: Mass of unknown metal (X) .29 Volume of H2 gas L mL Temperature of H; gas 20 mm к C Atmospheric pressure (see barometer) Vapor pressure of water mmHg Partial pressure of H; gas mmHg atm Using PV-nRT and your data, calculate the moles of hydrogen gas produced in the experiment: l e epl8 moles H Convert moles of hydrogen gas to moles of the metal...
On a hot summer day, the density of air at atmospheric pressure at 32.5°C is 1.1242 kg/m3. (a) What is the number of moles contained in 1.00 m3 of an ideal gas at this temperature and pressure? mol (b) Avogadro's number of air molecules has a mass of 2.86 x 10-2 kg. What is the mass of 1.00 m3 of air? (Assume air is an ideal gas.) kg (c) Does the value calculated in part (b) agree with the stated...
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