@X@user.full_name@X@ @GMU: A compound contains only rubidium and fluorine. A sample weighing 2.32 g of this compound contained 1.90 g of rubidium. How many grams of fluorine would there be in another sample of this compound containing 5.54 g of rubidium?

@X@user.full_name@X@ @GMU: How many grams of Na must one react with a stoichiometric amount of H2O to produce -70.57 kJ?2Na(s) + 2H2O(l) → 2NaOH(aq) + H2(g) ΔH = -368.4 kJ

@X@user.full_name@X@ @GMU: The density of a particular gas is 1.2149 g/L at 772.12 mm Hg and 32.63 °C. What is the molecular mass of the gas?

@X@user.full_name@X@ @GMU: How many grams of NaOH must be dissolved to produce exactly 100 mL of a 1.121 M solution?

@X@user.full_name@X@ @GMU: What is the atomic number of an element if the mass of one atom is 4.482e-23 g?

@X@user.full_name@X@ @GMU: The force exerted on an object was 8.488 kg×in/s2. What was the force in kg×m/cs2? There are 2.54 cm in an inch.

@X@user.full_name@X@ @GMU: Construct a molecular orbital energy diagram of O22-. What is its bond order?

@X@user.full_name@X@ @GMU: Draw the Lewis dot structure of SbCl5. How many lone-pairs of electrons (first) and bonding pairs of electrons exist on the molecule SbCl5?

What state did the British attack to test the loyalty of newly arrived settlers/farmers in the US? 

@X@user.full_name@X@ @GMU: How much heat will be involved when 6.014 g of NO reacts with a stoichiometric amount of O2?2NO(g) + O2(g) → 2NO2(g) ΔH = -114 kJ