Consider an aqueous solution containing 1.0 g/L of a protein (molar mass = 8.9 × 10* g/mol) with a density of 1.0 8/cm³. Calculate the freezing-point depression of this solution. Freezing-point depression = °C Calculate the osmotic pressure at 25°C of this solution. Osmotic pressure = torr Considering your answers, which colligative property, freezing-point depression or osmotic pressure, would be better used to determine the molar masses of large molecules?

114. mg of an unknown protein are dissolved in enough solvent to make 5.00 mL of solution. The osmotic pressure of this solution is measured to be 0.0231 atm at 25.0 °C. Calculate the molar mass of the protein. Be sure your answer has the correct number of significant digits. mol

Arrange the boiling points of the aqueous solutions, relative to pure water. Assume complete dissociation for the ionic compounds. Highest boiling point H,0 0.13 m K,SO4 0.15 m NaCl 0.18 m C12H„011 0.25 m C12H011 Lowest boiling point Answer Bank help contact us terms of use

A solution is prepared at 28°C and its concentration is expressed in three different units: percent by mass, molality, and molarity. If the solution is then heated to 77°C. Which, if any, of these concentration units will change? If none, answer "none".

In 200 words or less, give a real-world example of a colligative property of a solvent.  How does mixing a solution with a solvent change the physical properties of that solvent. For example, salt is placed on ice on a snowy day to decrease the freezing point of the ice, preventing it from melting and becoming slick and causing accidents.  The colligative property here is freezing point depression.

A salt solution has an osmotic pressure of 17.0 atmospheres at 17°C.  What is the freezing point of this solution? Freezing point = °C

228. mg of an unknown protein are dissolved in enough solvent to make 5.00 mL of solution. The osmotic pressure of this solution is measured to be 0.0572 atm at 25.0 °C. Calculate the molar mass of the protein. Round your answer to 3 significant digits. alo g x10 mol Ar