mole concept and concentration of solutions

Question 1

amount of substance that contains as many elementary entities (atoms, molecules, or other particles) as there are atoms in exactly 12 g of carbon

Answer 1

Mole/ mol

Question 2

mass exactly equal to one-twelfth the mass of a carbon atom; found in the periodic table

Answer 2

atomic mass

Question 3

sum of the atomic masses in the molecule or compound

Answer 3

molecular mass/ weight

Question 4

mass (in g or kg) of 1 mole units of a substance

Answer 4

molar mass (g/mol)

Question 5

number of formula untis, 1 mole of any element = 6.03 x 10 ^23

Answer 5

Avogadro’s number

Question 6

mass in grams expressed in the unit symbol as mM or mmol

Answer 6

millimoles

Question 7

measure of the amount of solute that has been dissolved in a given amount of solven

Answer 7

concentration of solution

Question 8

more solute solution, dissolves

Answer 8

unsaturated solution

Question 9

no more solute dissolves

Answer 9

saturated solution

Question 10

becomes unstable and forms crystals

Answer 10

supersaturated solution

Question 11

number of moles of solute in 1 L solution

Answer 11

molarity M

Question 12

Gives total number of moles of a solute in 1 L of the solution or the total number of millimoles in 1 mL

Answer 12

Analytical molarity

Question 13

aka species molarity, expreses molar concentration of a species in a solution at equilibrium

Answer 13

Equilibrium molarity

Question 14

ratio of its molar amount to the total number of moles of all solution components

Answer 14

mole fraction

Question 15

number of moles of solute dissolved in 1 kg of solvent

Answer 15

molality

Question 16

very low solute concentrations expressed usin appropriately small units

Answer 16

parts per million (ppm)
parts per billion (ppb)

Question 17

is the negative base - 19 logarithm of the molar concentration of the species

Answer 17

p-function