The vapor pressure of pure ethanol at 60 °C is 0.459 atm. Raoult’s Law predicts that a solution prepared by dissolving 0.0100 mol naphthalene (nonvolatile) in 0.0900 mol ethanol will have a vapor pressure of ________ atm.

Molecular solids consist of atoms or molecules held together by ________.

All of the following are a type of solid except ________.

Based on the figure above, what is the boiling point (°C) of water under an external pressure of 0.724 atm?

What is the molal concentration of potassium bromide in a solution prepared by dissolving 2.27 g of potassium bromide in 897 g of water?

The enthalpy change for converting 1.00 mol of ice at -25.0 °C to water at 50.0 °C is  The specific heats of ice, water, and steam are   and  respectively. For H2O, ΔHfus = 6.01 kJ/mol, and .

The solubility of oxygen gas in water at 25 °C and 1.0 atm pressure of oxygen is 0.041 g/L.  The solubility of oxygen in water at 4.0 atm and 25 °C is ________ g/L.

A ice sample starts at -30

For the following question, you can receive a majority of points by drawing an appropriate sketch with important information on it.  To receive full credit, you need to answer the quantitative questions.

Answer the following questions about a solution made by dissolving 11.0 g of an unknown non-electrolyte substance in 119 g water at 20°C. Write all answers in decimal format and pay attention to significant figures (don’t include units)!   If the osmotic pressure of this solution was found to be 6.19 atm, what is the concentration of this solution (in M)?   If the density of the solution is 1.04 g/mL, what is the volume of solution (in mL)?   How many moles of solute are present in the solution?   What is the molar mass of the solute (in g/mol)?