Colligative Properties - Page 5
Questions
- The freezing point of an aqueous solution is -2.79°C. What is the boiling point of this solution?
- The freezing point of an aqueous solution that contains a nonelectrolyte is #-4.0^@"C"#. What is the molal concentration of the solution? #Kf = 1.86^@"C/m"#
- Why does adding 1 mole of salt, #NaCl#, lower the freezing point of a sample of water more than adding 1 mole of sucrose, #C_12H_22O_11#?
- Why do solutes lower vapor pressure?
- The freezing point depression of potassium ethanoate is greater than that of the other two solutes (camphor and urea) when an equal number of moles of each is used. Can somebody explain this?
- How many grams of #NH_4OH# must be dissolved in 75 g of water to lower the freezing point -3.0°C?
- What is the boiling point of a solution of 24.6 g of camphor in 98.5 g of benzene?
- What is the equation for freezing point?
- How is boiling point elevation applied to real life?
- What is the molality for an aqueous solution whose freezing point dropped by #15^@ "C"# due to addition of #"CaCl"_2(s)#? #K_f = 1.86^@ "C/m"# for water.
- A solution of sodium chloride in water has a vapor pressure of 19.6 torr at 25 degrees Celsius. What is the mole fraction of NaCl solute particles in this solution?
- What is the difference between vapour pressure of a solvent and vapour pressure of pure solvent in Raoult's law?
- How many grams of salt must be added to 300g of water to increase its boiling point by 5°C?
- If I cool a solution containing 62 g of ethylene glycol in 250 g water to -9.3 °C, what mass of ice will separate out?
- What is the effect of the van't Hoff factor on the boiling point elevation or freezing point depression for a given electrolytic solution?
- If 39 grams of benzene are dissolved in 100.0 grams of water, what is is boiling point?
- What is the boiling point of a 0.743 m aqueous solution of #KCl#?
- Does salt lower boiling point?
- Urea, #("NH"_2)_2"CO"#, is dissolved in #"100 g"# of water. The solution freezes at #-0.085^@"C"#. How many grams of urea were dissolved to make this solution?
- How do ionic solutes affect the boiling point?