Shown below are 6 compounds.  Compounds A and B are ionic with their formula given, while compounds C-F are molecular and their 3-D shape is shown.  Table for Question 13 Letter Identifier A B C D E F Compound NaF FeCl   Match the compounds with their order from lowest to highest melting point. With (1) being the lowest melting point and (6) being the highest boiling point.  

Instead of water, you try to dissolve the salt in the previous question in 2.0 L of a 0.1 M NaSO4 solution.  Would you expect more, less, or the same amount of your salt to dissolve in this solution compared with what you calculated in water?  

You dissolve 25.0 g of solute in enough water to make a solution that has a total volume of 100.0 mL and a density of 0.953 g/mL. Calculate the mass percent of the solution.  Enter numbers and decimal points ONLY.  Enter three significant digits past the decimal point.  Your answer should be four significant digits total. DO NOT enter M, it is known that your answer is in M.

Next to each species below, choose the type of solid each will form.  (Selection: atomic, molecular, covalent, ionic, metallic) Table for Question 10 Compound Type of Solid SeF4 [compound1] TiF4 [compound2] Ar [compound3] CHCl3 [compound4] Ba(NO3)2 [compound5] Zn [compound6] quartz  [compound7] Pd [compound8]

A 1.50-L solution saturated with tin(II) iodide at a certain nonstandard temperature contains .  Calculate the Ksp for this compound at this temperature. 

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You dissolve 35.0 g of solute in enough water to make a solution that has a total volume of 200.0 mL and a density of 1.079 g/mL. Calculate the mass percent of the solution. Enter numbers and decimal points ONLY.  Enter three significant digits past the decimal point.  Your answer should be four significant digits total. DO NOT enter M, it is known that your answer is in M.

True or False: You have 4 molecules. Molecule A is ionic, Molecule B is polar and capable of hydrogen bonding, Molecule C is polar and Molecule D is nonpolar.  H2O would be expected to have a higher boiling point than molecule C.

Draw the Lewis Structure for BrO2- and then choose (a) the correct molecular structure (choices = linear, trigonal planar, bent, tetrahedral, trigonal pyramidal, trigonal bipyramidal, seesaw, T-shaped, square pyramidal, square planar) and then indicate whether the molecule is polar or nonpolar (choices = polar, nonpolar).  Table for Question 12 Compound molecular structure polarity BrO2- [molecularstructure] [polarity]

You have 4 molecules. Molecule A is ionic, Molecule B is polar and capable of hydrogen bonding, Molecule C is polar and Molecule D is nonpolar.  Which molecule would you expect to have the lowest vapor pressure?