@X@user.full_name@X@ @GMU: A gas mixture contains an unknown amount of UF6 and 0.1159 mol of N2. How many moles of UF6 are there, if the total pressure is 529.89 mm Hg and the partial pressure of UF6 is 304.79 mm Hg?

@X@user.full_name@X@ @GMU: A compound contains only magnesium and astatine. A sample weighing 52.1 g of this compound contained 2.85 g of magnesium. How many grams of astatine would there be in another sample of this compound containing 7.79 g of magnesium?

@X@user.full_name@X@ @GMU: How many decimeters are there in 15.04 centimeters?

@X@user.full_name@X@ @GMU: A compound contains only magnesium and fluorine. A sample weighing 5.98 g of this compound contained 2.33 g of magnesium. How many grams of fluorine would there be in another sample of this compound containing 4.55 g of magnesium?

@X@user.full_name@X@ @GMU: A gas mixture contains 0.1789 mol of C2H6 and 0.2497 mol of NO. What is the partial pressure of C2H6, if the total pressure is 771.39 mm Hg?

@X@user.full_name@X@ @GMU: What is the atomic number of an element if the mass of one atom is 1.674e-24 g?

@X@user.full_name@X@ @GMU: What is the atomic number of an element if the mass of one atom is 1.995e-23 g?

@X@user.full_name@X@ @GMU: What is the arrangement of charge clouds (electron pairs) around the central atom in KrF2?

@X@user.full_name@X@ @GMU: What is 3.47 K on the Fahrenheit scale?

@X@user.full_name@X@ @GMU: How many grams of NO must one react with a stoichiometric amount of O2 to produce -10.78 kJ?2NO(g) + O2(g) → 2NO2(g) ΔH = -114 kJ