Solvent - Page 2
Questions
- In the extraction procedures, how do I know layer is on top and which is on the bottom????
- A gas tank holds a homogeneous mixture of 0.1 mol neon, 0.2 mol helium, O.2 mol oxygen and 0.8 mol argon. Which of these gases is the solvent in this mixture?
- How does the solvent effect chromatography?
- What is the property of water that makes it the universal solvent?
- What physical properties of water cause it to be such a good solvent?
- When #"18 g"# of ethylene glycol (#C_2H_6O_2#) is dissolved in #"150 g"# of pure water, what is the freezing point of the solution? (The freezing point depression constant for water is #1.86^@ "C"cdot"kg/mol"#.)
- Will adding a solute to a solvent raise the freezing point of the solvent?
- A #"saturated solution"# is one in which.....?
- How would you describe a solute molecule that is surrounded by solvent molecules?
- How does a solvent affect reaction rate?
- Assume that you have a solution of an unknown solute in cyclohexane. If the solution has a freezing-point depression of 9.50Celcius, what is the molality of this solution? (The molal freezing-point constant of cyclohexane is 20.2 C/m)
- Why is water such a good solvent for ionic compounds?
- What does not change when a solution is diluted by addtion of a solvent?
- What is an example practice problem involving a solvent?
- How could the freezing point depression of #CaCl_2# be smaller than #NaCl#?
- Given that the freezing point depression constant for water is 1.86 C kg/mol, how do you calculate the change in freezing point for a 0.833m sugar solution?
- Why is water so widely used as a solvent?
- Why is solvent extraction important?
- How do you recrystallize naphthalene and maleic anhydride?
- What mass of solvent is in a #55*g# mass of solution that contains #5*g# of solute?