@X@user.full_name@X@ @GMU: The density of a particular gas is 2.7702 g/L at 827.04 mm Hg and 33.54 °C. What is the molecular mass of the gas?

What is the age of this tilia tree slide Tilia age.jpg

@X@user.full_name@X@ @GMU: What is the arrangement of charge clouds (electron pairs) around the central atom in SiH4?

@X@user.full_name@X@ @GMU: The density of a particular gas is 3.5345 g/L at 818.12 mm Hg and 27.15 °C. Which gas is it?

@X@user.full_name@X@ @GMU: A flexible container was filled with 0.1503 mol of CO at a volume of 16.20 L. How many moles of this gas would there be if the volume decreased to 8.48 L? Assume pressure is constant.

@X@user.full_name@X@ @GMU: A flexible container was filled with 0.1566 mol of SO2 at a volume of 17.50 L. How many liters of this gas would there be if the number of moles increased to 0.3103 mol? Assume pressure is constant.

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

@X@user.full_name@X@ @GMU: Draw the lewis dot structure of O2. How many lone-pairs of electrons (first) and bonding pairs of electrons exist on the molecule O2?

@X@user.full_name@X@ @GMU: What is the mole fraction of C3H8 in a mixture of 13.92 g of C3H8 and 11.1159 g of H2S?

@X@user.full_name@X@ @GMU: A flexible container was filled with N2O4 gas at a pressure of 1.762 atm and volume of 11.645 L. What volume would this same gas occupy if the pressure increased to 3.088 atm? Assume temperature is constant.