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@X@user.full_name@X@ @GMU: Draw the lewis dot structure of NH3. How many lone-pairs of electrons (first) and bonding pairs of electrons exist on the molecule NH3?

@X@user.full_name@X@ @GMU: A flexible container was filled with 0.1295 mol of CO2 at a volume of 14.18 L. How many moles of this gas would there be if the volume decreased to 7.44 L? Assume pressure is constant.

@X@user.full_name@X@ @GMU: An unknown gas effused through a porous membrane 1.332 times faster than Cl2. Which of the substances below must be the gas?

@X@user.full_name@X@ @GMU: A flexible container was filled with CO gas at a pressure of 1.451 atm and volume of 15.125 L. What volume would this same gas occupy if the pressure increased to 2.613 atm? Assume temperature is constant.

@X@user.full_name@X@ @GMU: How much work has been done when the volume of a gas changes from 17.18 L to 25.49 L at a constant pressure of 2.417 atm and temperature?

@X@user.full_name@X@ @GMU: A flexible container was filled with 0.1652 mol of CO at a volume of 19.34 L. How many moles of this gas would there be if the volume increased to 38.15 L? Assume pressure is constant.

@X@user.full_name@X@ @GMU: What is the average speed of Kr molecules (atoms) at 25.00 °C?

@X@user.full_name@X@ @GMU: When an electron is initially in a higher energy orbital and transitions to a lower energy orbital the difference in energies of the two orbitals is the energy of the light emitted. Which transition for hydrogen occurs at the highest energy?

@X@user.full_name@X@ @GMU: A flexible container was filled with 0.1125 mol of CO at a volume of 15.17 L. How many moles of this gas would there be if the volume increased to 25.78 L? Assume pressure is constant.

@X@user.full_name@X@ @GMU: A gas mixture contained 56.82% by weight HBr and 43.18% C2H6. What was the mole fraction of HBr?