Concentrations of solutions

Question 1

a solute is

Answer 1

a substance that is dissolved

Question 2

a solvent is

Answer 2

a substance that dissolves a solute

Question 3

a solution is

Answer 3

a solute dissolved in a solution

Question 4

the mass concentration of a solution is

Answer 4

the mass (in g) of the solute divided by the volume of the solution

Question 5

mass concentration in g dm-3 =

Answer 5

mass of solute in g / volume of solution in dm3

Question 6

another way of writing milligrams per dm3 is

Answer 6

ppm (parts per million)

Question 7

to convert cm3 to dm3 you must

Answer 7

divide by 1000

Question 8

molar concentration is also called

Answer 8

molarity

Question 9

if only the term ‘concentration’ is used, then you should assume that it means

Answer 9

molar concentration

Question 10

molar concentration of a solution is

Answer 10

the amount (in mol) of the solute divided by the volume of the solution

Question 11

the units of molar concentration are

Answer 11

mol dm3

Question 12

the units of molar concentration can also be displayed through…. or as ……….

Answer 12

square brackets [ ] or with c

Question 13

c =

Answer 13

n / V