@X@user.full_name@X@ @GMU: What is -8.82 °F on the Kelvin scale?

@X@user.full_name@X@ @GMU: A gas mixture contains an unknown amount of H2S and 0.1137 mol of Kr. How many moles of H2S are there, if the total pressure is 599.03 mm Hg and the partial pressure of H2S is 354.21 mm Hg?

@X@user.full_name@X@ @GMU: What is the wavelength of a line in the Brackett series of the hydrogen spectrum, if the transition occurs from ni = 9 to nf = 4? Remember the Rydberg constant is 1.097×10-2 nm-1

@X@user.full_name@X@ @GMU: Draw the Lewis dot structure of CO2. How many lone-pairs of electrons (first) and bonding pairs of electrons exist on the molecule CO2?

@X@user.full_name@X@ @GMU: A compound contains only lithium and fluorine. A sample weighing 7.46 g of this compound contained 2.00 g of lithium. How many grams of fluorine would there be in another sample of this compound containing 5.90 g of lithium?

@X@user.full_name@X@ @GMU: When 10.893 g of Al reacted with an excess of oxygen, a 31.63 % yield of Al2O3 was obtained. How many grams of Al2O3 were produced?4Al(s) + 3O2(g) → 2Al2O3(s)

@X@user.full_name@X@ @GMU: How many grams of H2 must one react with a stoichiometric amount of O2 to produce -771.6 kJ?2H2(g) + O2(g) → 2H2O(g) ΔH = -484 kJ

@X@user.full_name@X@ @GMU: What is the molecular shape of SeF4?

@X@user.full_name@X@ @GMU: NO2 at 378°C decomposes to form NO and O2 according to second order kinetics (see reaction below). The half-life for this reaction was measured to be 2.56e1 s when the initial concentration of NO2 was 9.54e-3 M. What is the rate constant for this reaction?2NO2(g) → 2NO(g) + O2(g)

@X@user.full_name@X@ @GMU: What is the conjugate base and base dissociation constant of HCN if its acid dissociation constant is 4.900×10-10 ?