Section 12.3- Measuring Solution Concentration

Question 1

an expression of the quantity of solute present in a given quantity of solution

Answer 1

concentration

Question 2

concentration =

Answer 2

quantity of solute/ quantity of solution (or solvent)

Question 3

one way to express the concentration of a solution is the

defined as the number of moles of solute per liter of solution

Answer 3

molar concentration or molarity

Question 4

equation for molarity

Answer 4

M= moles solute/ liters solution

Question 5

solutions with accurate molarities are prepared by using a

Answer 5

volumetric flask

Question 6

rather than always preparing solutions from the solid solute in the laboratory, solutions are often prepared by

Answer 6

diluting a more concentrated stock solution to the desired concentration (add water)

Question 7

moles solute before dilution =

Answer 7

moles solute after dilution

Question 8

moles solute=

Answer 8

volume x molarity

Question 9

equation for dilutions

Answer 9

V1M1= V2M2

Question 10

to find the amount of water added to dilute, subtract

Answer 10

V2 from V1

Question 11

defined as the number of moles of solute per kilogram of solvent

Answer 11

molality

Question 12

equation for molality

Answer 12

m = moles solute/ kilograms solvent

Question 13

solvent is the

Answer 13

water