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WorksheetsUnit Quiz on Solutions
Total questions: 20
Worksheet time: 3mins
The dissolution of water in octane (C8H18) is prevented by
London dispersion forces between octane molecules
hydrogen bonding between water molecules
dipole-dipole attraction between octane molecules
ion-dipole attraction between water and octane molecules
Hydration is a specific example of the phenomenon known generally as ___
salutation
disordering
solvation
condensation
The phrase "like dissolves like" refers to the fact that ___
gases can only dissolve other gases
polar solvents dissolve polar solutes and nonpolar solvents dissolve nonpolar solutes
solvents can only dissolve solutes of similar molar mass
polar solvents dissolve nonpolar solutes and vice versa
A saturated solution ___
contains as much solvent as it can hold
contains no double bonds
contains dissolved solute in equilibrium with undissolved solute
will rapidly precipitate if a seed crystal is added
A solution with a concentration higher than the solubility is ___
is not possible
is unsaturated
is supersaturated
is saturated
Which one of the following vitamins is water soluble?
retinol
riboflavin
alpha tocopherol
cholecalciferol
Which one of the following substances would be the most soluble in carbon tetrachloride, CCl4?
ethanol, CH3CH2OH
water, H2O
ammonia, NH3
decane, C10H22
Pressure has an appreciable effect on the solubility of ___ in liquids
gases
solids
liquids
salts
Which of the following statements is FALSE?
Nonpolar liquids tend to be insoluble in polar liquids.
The weaker the attraction between the solute and solvent molecules, the greater the solubility.
Substances with similar intermolecular attractive forces tend to be soluble in one another.
The solubility of a gas increases in direct proportion to its partial pressure above the solution.
Which of the following statements is TRUE?
For a dilute aqueous solution, a concentration of 1 ppm also corresponds to a concentration of 1 milligrams per liter of solution.
Adding a nonvolatile solute to a solution increases the vapor pressure of the solution.
After swimming in the ocean for several hours, swimmers noticed that their fingers appeared to be very wrinkled. This is an indication that seawater is supertonic relative to the fluid in cells.
The value of the boiling-point elevation constant depends on the identity of the solute.
A solution contains 28% phosphoric acid by mass. This means that ____
1 mL of this solution contains 28 g of phosphoric acid
1 L of this solution has a mass of 28 g
100 g of this solution contains 28 g of phosphoric acid
1 L of this solution contains 28 mL of phosphoric acid
Which of the following has the least effect on the solubility of a solid in a liquid solvent?
temperature
nature of the solvent
pressure
type of the solute
Which of the following will be soluble in water?
Silver (I) chloride
Silver (I) sulfide
Silver (I) acetate
silver (I) carbonate
Which of the following does not belong to the group?
ammonium nitrate, NH4NO3
ferric acetate, Fe(C2H3O2)3
sodium bromide, NaBr
barium sulfate, BaSO4
Under what conditions are the molality and molarity of a solution nearly the same?
For all solutions where water is the solvent.
For all solutions which are very dilute.
For all dilute solutions in which the solvent has a density near 1.0 g/mL.
For all concentrated solutions in which the solvent has a density near 1.0 g/mL.
A 0.100 m solution of which one of the following solutes will have the lowest vapor pressure?
potassium perchlorate, KClO4
calcium perchlorate, Ca(ClO4)2
aluminum perchlorate, Al(ClO4)3
sucrose, C12H22O11
The magnitudes of Kf and of Kb depend on the identity of the ____
solute
solvent
solution
solvent and on temperature
Which produces the greatest number of ions when one mole dissolves in water?
sodium chloride, NaCl
ammonium nitrate, NH4NO3
ammonium chloride, NH4Cl
sodium sulfate, Na2SO4
As the concentration of a solute in a solution increases, the freezing point of the solution ___ and the boiling point of the solution ___.
increases, increases
increases, decreases
decreases, increases
decreases, decreases
The most likely van't Hoff factor for an 0.01 m CaI2 solution is ___
3.29
3.00
1.27
2.69
