Sci 2 (2)

Question 1

What is the symbol for the unit of molarity?

Answer 1

M

Question 2

What are the physical properties that are dependent on the relative number of moles of solute and solvent called

Answer 2

colligative properties

Question 3

What unit expresses the relative number of moles of solute and solvent?

Answer 3

mole fraction

Question 4

What does molality rely on?

Answer 4

fixed mass of solvent

Question 5

What does molality units express?

Answer 5

number of moles of solute in 1 kilgram of solvent

Question 6

What are the three ways by which amount of solute is measured?

Answer 6

percent composition, molarity, molality

Question 7

What differentiates molarity and molality in terms of measurement?

Answer 7

molarity uses 1 liter of solvent, molality uses 1 kg of solvent

Question 8

What is Raoult’s law

Answer 8

“a solvent’s partial vapor pressure in a solution is equal to the vapor pressure of the pure solvent multiplied by its mole fraction in the solution

Question 9

When salts are dissolved, the effect on the boiling point has what impact?

Answer 9

Double of the expected impact

Question 10

What is the most viable alternative for distillation?

Answer 10

reverse osmosis

Question 11

What method does the desalination operation in Carlsbad, California use?

Answer 11

reverse osmosis

Question 12

What alternative to salt on roads has been proposed?

Answer 12

Calcium magnesium acetate