Blog

Given the following four aqueous solutions (assume complete dissociation): Solution 1 0.30 m CH3OH Solution 2 0.32 m NH3 Solution 3 0.11 m MgSO4 Solution 4 0.18 m KBr   1) Which solution has the highest osmotic pressure? [a] 2) Which solution has the lowest boiling point? [b] 3) Which solution has the highest freezing point? [c] 4) Which solution has the lowest vapor pressure? [d]

How many grams of ethanol (C2H5OH) can be vaporized at its boiling point by 725 kJ of heat? (∆Hvap of ethanol is 38.56 kJ/mol, molar mass of ethanol = 46.068 g/mol) Show all your work and setup for credit.

Given the following data, determine the rate law for the following reaction. 2NO(g) + Cl2(g) → 2NOCl(g) Experiment [NO] [Cl2] Rate (M/s) 1 0.0300 0.0100 3.4

Predict the ideal van’t Hoff factor (i) for NH4Cl.

Liquid sodium can be used as a heat transfer fluid. Its vapor pressure is 40.0 torr at 906.2 K and 400.0 torr at 1096.2 K. Calculate its heat of vaporization. You must show all of your work including units for credit.

Use the following information to answer the question. The drug Lasix prevents sodium in the filtrate from being reabsorbed into the blood.  The result of this drug would be

For a given substance, which of the following phase transition should absorb the most energy?

What abnormal blood cell morphology is associated with the McLeod phenotype?

Why can’t autoadsorption be performed on a patient who was transfused 1 month before?

Which antigen is expressed on C4B complement fragments?