8. Neon gas is found to effuse through a hole. Careful measurement indicates that 1.42 x...
8. Neon gas is found to effuse through a hole. Careful measurement indicates that 1.42 x 10 mol effused in 5.8 minutes. How long (in min) would it take for the same amount of xenon gas to effuse through the same hole under the same conditions? A: 14.8 RKSHEET 9 9. A 2.00 L bottle contains the following gases: 0.0150 mol He, 0.100 mol Ny, and 0.00250 mol Xe. If the temperature of the gas mixture is 22.4 °C, what...
A sample of CH4 gas is observed to effuse through a porous barrier in 6.35 minutes. Under the same conditions, the same number of moles of an unknown gas requires 14.8 minutes to effuse through the same barrier. The molar mass of the unknown gas is ___g/mol.
Question 10 10 pts If hydrogen gas (H2) requires 28.51 minutes to effuse through a small hole in its container, how long will it take ammonia (NH3) to effuse under the same conditions of temperature and pressure? Atomic weights of the elements encountered in this problem are as follows: H: 1.00794 g/mol N 14.00674 g/mol 9.809 minutes 82.87 minutes 240.9 minutes 3.375 minutes 45.71 minutes
A gas effusion cellis loaded with O2 gas at STP it take 344 seconds 0.010% of the gas to effuse through the hole. Under the same conditions, an unknown gas takes 46 3 seconds for 0.010% of gas to offuse through the hole. Based on these data, what is the molar mass of the unknown gas in gimoll?
A sample of He gas is observed to effuse through a porous barrier in 8.83 minutes. Under the same conditions, the same number of moles of an unknown gas requires 30.1 minutes to effuse through the same barrier. The molar mass of the unknown gas is ___ g/mol
7. A gaseous hydrocarbon is found to effuse through a porous barrier in 1.50 min. Under the same conditions of temperature and pressure, it takes an equal volume of bromine (Br2) vapor 4.73 min to effuse through the same barrier. Calculate the molar mass of the hydrocarbon. ANSWER: 16.1 g/mol
A sample of He gas is observed to effuse through a pourous barrier in 8.78 minutes. Under the same conditions, the same number of moles of an unknown gas requires 22.1 minutes to cffuse through the same barrier. The molar mass of the unknown gas is 18 mol Submit Answer Retry Entire Group 3 more group attempts remaining
1. The rate of effusion of CH4 gas through a porous barrier is observed to be 9.17*10^-4 mol/h. Under the same conditions, the rate of effusion of gas would be _____________ mol/h. 2. A sample of N2 gas is observed to effuse through a pourous barrier in 1.93 minutes. Under the same conditions, the same number of moles of an unknown gas requires 2.97 minutes to effuse through the same barrier. The molar mass of the unknown gas is _______________
Under identical conditions, separate samples of O2 and an unknown gas were allowed to effuse through identical membranes simultaneously. After a certain amount of time, it was found that 6.71 mL of O2 had passed through the membrane, but only 3.14 mL of of the unknown gas had passed through. What is the molar mass of the unknown gas? Number g/mol
Q78 Part A How long would it take the same amount of gaseous I, to effuse from the same container under identical conditions? Express your answer using two significant figures. IVO AED 6 0 ? Submit Request Answer Item 7 A sample of N20 effuses from a container in 43 seconds Provide What will its volume be if an additional 0.311 mol of gas is added to the cylinder? (Assume constant temperature and pressure.) IVO ALDO ? V2 = Submit...