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A gas of unknown molecular mass was allowed to effuse through a small opening under constant...
A gas of unknown molecular mass was allowed to effuse through a small opening under constant pressure conditions. It required 52 s for 1.0 L of the gas to effuse. Under identical experimental conditions it required 27 s for 1.0 L of O2 gas to effuse. Calculate the molar mass of the unknown gas. (Remember that the faster the rate of effusion, the shorter the time required for effusion of 1.0 L; that is, rate and time are inversely proportional.)...
A 9.262 mol sample of xenon gas is maintained in a 0.8496 L container at 299.3...
A 9.262 mol sample of xenon gas is maintained in a 0.8496 L container at 299.3 K. What is the pressure in atm calculated using the van der Waals' equation for Xe gas under these conditions? For Xe, a = 4.194 L2atm/mol2 and b = 5.105×10-2 L/mol.
Part A) Which of the following statements is true for ideal gases, but is not always...
Part A) Which of the following statements is true for ideal gases, but is not always true for real gases? Choose all that apply. Molecules are in constant random motion. Pressure is caused by molecule-wall collisions. The size of the molecules is unimportant compared to the distances between them. The volume occupied by the molecules is negligible compared to the volume of the container. Part B) Which of the following statements is true for real gases? Choose all that apply....
Pledge: I pledge my Honor that I have abided by the Stevens Honor System (signed) Constants...
Pledge: I pledge my Honor that I have abided by the Stevens Honor System (signed) Constants to use: NA 6.022 x 103 /mol; 1 atm = 760 mmHg= 760 torr = 14.7 psi, R 0.08206 L-atm/K-mol. 0°C 273 K Learning Objectives 1. Calculate the root mean square velocity of a gas 2. Understanding effusion and diffusion, applying Graham's Law 3. Calculate pressure for a gas using the ideal gas law and the Van der Waals equation 4. Perform calculations to...
need help on part B a Calculate the pressure exerted by 20.0 g of Co, in...
need help on part B
a Calculate the pressure exerted by 20.0 g of Co, in a 600 ml. vessel at 298 K using the ideal gas equation. Then, recalculate the pressure using the van der Waals equation. Assuming that the pressure calculated from the van der Waals equation is correct, what is the percent error in the answer when using the ideal gas equation? Van der Waals constants for CO2 are: a = 3.50 -, and b=0.0427 L/mol; R...
Please help! QUESTION 1 A gas effusion cell is loaded with O2 gas at STP it...
Please help!
QUESTION 1 A gas effusion cell is loaded with O2 gas at STP it take 34 seconds 0.010% of the gas to effuse through the hole. Under the same conditions, an unknown gas takes 59.4 seconds for 0.010% of gas to effuse through the hole. Based on these data, what is the molar mass of the unknown gas (in g/mol)? QUESTION 2 A sample of gas is contained in a cylinder with a movable piston. The initial conditions...
10. Calculate the density, in g/L. of CO, gas at 27°C and 0.50 atm pressure. A) 0.89 g L B ) 1.12 g/L. C) 9.93 g/I....
10. Calculate the density, in g/L. of CO, gas at 27°C and 0.50 atm pressure. A) 0.89 g L B ) 1.12 g/L. C) 9.93 g/I. D) 46.0 g/L 11. A mixture of three gases has a total pressure of 1,380 inmHg at 298 K. The mixture is analyzed and is found to contain 1.27 mol CO, 3.04 mol CO, and 1.50 mol Ar. What is the partial pressure of Ar? A) 301 mmHg B) 356 mmHg C) 5.345 mmHg...
ant 8-8: The Behavior of Real (Non-Ideal) Gases A 9.642 mol sample of argon gas is...
ant 8-8: The Behavior of Real (Non-Ideal) Gases A 9.642 mol sample of argon gas is maintained in a 0.8464 L container at 302.4 K. What is the pressure in atm calculated using the van der Waals' equation for Ar gas under these conditions? For Ar, a = 1.345 L'atm/mol2 and b = 3.219x10-2 L/mol. atm
waa r the accepted value at SIF, and the perce REVIEW QUESTIONS MPC, rather than 45 ml of Me would have made any d...
waa r the accepted value at SIF, and the perce REVIEW QUESTIONS MPC, rather than 45 ml of Me would have made any difference in the amount of oxygen was collected? Explain why or why not In this experiment, some oxy en gas will dissolve in water How will this affect the molar volume calculated? Would the molar volume be too high or too low In Step 1, if the outside of flask was wet when you weighed it, how...
Which one of the following gases would be expected to have the highest speed if all...
Which one of the following gases would be expected to have the highest speed if all the gases were at the same temperature? A) O2 B) N2 C) F2 D) H2 Which of the following would behave the most like an ideal gas when confined to a 5.0 L container? A) 1 mol of Ne at 800 K B) 5 mol of Ne at 300 K C) 1 mol of CO2 at 800 K D) 5 mol of CO2 at...
A gas of unknown molecular mass was allowed to effuse through a small opening under constant pressure conditions. It required 52 s for 1.0 L of the gas to effuse. Under identical experimental conditions it required 27 s for 1.0 L of O2 gas to effuse. Calculate the molar mass of the unknown gas. (Remember that the faster the rate of effusion, the shorter the time required for effusion of 1.0 L; that is, rate and time are inversely proportional.)...
Pledge: I pledge my Honor that I have abided by the Stevens Honor System (signed) Constants to use: NA 6.022 x 103 /mol; 1 atm = 760 mmHg= 760 torr = 14.7 psi, R 0.08206 L-atm/K-mol. 0°C 273 K Learning Objectives 1. Calculate the root mean square velocity of a gas 2. Understanding effusion and diffusion, applying Graham's Law 3. Calculate pressure for a gas using the ideal gas law and the Van der Waals equation 4. Perform calculations to...
need help on part B
a Calculate the pressure exerted by 20.0 g of Co, in a 600 ml. vessel at 298 K using the ideal gas equation. Then, recalculate the pressure using the van der Waals equation. Assuming that the pressure calculated from the van der Waals equation is correct, what is the percent error in the answer when using the ideal gas equation? Van der Waals constants for CO2 are: a = 3.50 -, and b=0.0427 L/mol; R...
Please help!
QUESTION 1 A gas effusion cell is loaded with O2 gas at STP it take 34 seconds 0.010% of the gas to effuse through the hole. Under the same conditions, an unknown gas takes 59.4 seconds for 0.010% of gas to effuse through the hole. Based on these data, what is the molar mass of the unknown gas (in g/mol)? QUESTION 2 A sample of gas is contained in a cylinder with a movable piston. The initial conditions...
10. Calculate the density, in g/L. of CO, gas at 27°C and 0.50 atm pressure. A) 0.89 g L B ) 1.12 g/L. C) 9.93 g/I. D) 46.0 g/L 11. A mixture of three gases has a total pressure of 1,380 inmHg at 298 K. The mixture is analyzed and is found to contain 1.27 mol CO, 3.04 mol CO, and 1.50 mol Ar. What is the partial pressure of Ar? A) 301 mmHg B) 356 mmHg C) 5.345 mmHg...
ant 8-8: The Behavior of Real (Non-Ideal) Gases A 9.642 mol sample of argon gas is maintained in a 0.8464 L container at 302.4 K. What is the pressure in atm calculated using the van der Waals' equation for Ar gas under these conditions? For Ar, a = 1.345 L'atm/mol2 and b = 3.219x10-2 L/mol. atm
waa r the accepted value at SIF, and the perce REVIEW QUESTIONS MPC, rather than 45 ml of Me would have made any difference in the amount of oxygen was collected? Explain why or why not In this experiment, some oxy en gas will dissolve in water How will this affect the molar volume calculated? Would the molar volume be too high or too low In Step 1, if the outside of flask was wet when you weighed it, how...
Which one of the following gases would be expected to have the highest speed if all the gases were at the same temperature? A) O2 B) N2 C) F2 D) H2 Which of the following would behave the most like an ideal gas when confined to a 5.0 L container? A) 1 mol of Ne at 800 K B) 5 mol of Ne at 300 K C) 1 mol of CO2 at 800 K D) 5 mol of CO2 at...
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