@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?

@X@user.full_name@X@ @GMU: A flexible container was filled with CO2 gas at a pressure of 1.118 atm and volume of 12.829 L. What volume would this same gas occupy if the pressure increased to 2.275 atm? Assume temperature is constant.

@X@user.full_name@X@ @GMU: A flexible container was filled with H2 gas at a pressure of 1.64 atm and volume of 10.905 L. What pressure would this gas exert if the volume increased to 18.47 L? Assume temperature is constant.

@X@user.full_name@X@ @GMU: What is the molecular shape of H2O ?

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

@X@user.full_name@X@ @GMU: How much work has been done when the volume of a gas changes from 19.28 L to 13.79 L at a constant pressure of 1.849 atm and temperature?

@X@user.full_name@X@ @GMU: What is the longest wavelength in the Balmer series (nf = 2)? Remember the Rydberg constant is 1.097×10-2 nm-1

@X@user.full_name@X@ @GMU: A flexible container was filled with 0.1106 mol of N2O4 at a volume of 12.79 L. How many moles of this gas would there be if the volume increased to 27.44 L? Assume pressure is constant.

@X@user.full_name@X@ @GMU: Draw the lewis dot structure of SF4. How many lone-pairs of electrons (first) and bonding pairs of electrons exist on the molecule SF4?

@X@user.full_name@X@ @GMU: Which element below will never break the octet rule by having an expanded valence shell?