Solutions Review PAP

What is it about the water molecule that makes it a great solvent?

• water demonstrates polarity; a partial charge on each side of the molecule
• due to its molecular formula
• it has a liner molecular shape
• due to it's non-polar molecular structure

What is the correct formula to solve for the Molarity of a solution that has .4 moles of HCl in 9.5 L of solution?

• M = 9.5 L / .4 mol
• M₁V₁=M₂V₂
• M = .4 mol / 9.5 L
• none of the other choices

A sample of 0.0255 mol potassium hydroxide, KOH, was dissolved in water to yield 10.0 mL of
solution.  Which amount would you need to change to solve for molarity?

• change .0255 moles to grams
• change 10 mL to L
• change both values to grams and L
• leave it as it is

Which of the following would decrease the rate of solution when dissolving a solid in water?

• Raise the temperature of the solution
• Crush the solid before mixing
• Stir the solution after mixing
• Use a single cube of solid

the definition of a solution is

• solute + solution

• solvent + solution

• solute + solvent

• solution + dillution

The substance being dissolved is called the ________

• solvent

• solid

• solute

• solvate

The process of dissolving a substance in solution

• solvotion

• salvation

• solvation

• salvution

What does "like dissolves like" mean?

• polar solvents dissolve in polar solutes

• polar solutes dissolve in polar solvents

• non-polar solvents dissolve in polar solutes

• non-polar solutes dissolve in polar solvents

In which mixture can you not see all of the parts?

• homogeneous

• heterogeneous

What does it mean to be "Soluble" ?

• Capable of being a solid.
• To have soul.
• Capable of being dissolved.
• To sink.