Chemical Measurements

Question 1

powers of ten

Answer 1

orders of magnitude

Question 2

the French System International of Units

Answer 2

SI Units, base units, fundamental units

Question 3

standards of mass, length and time

Answer 3

meter, kilogram and second

Question 4

frequency

Answer 4

hertz, Hz

Question 5

force

Answer 5

newton, N

Question 6

pressure

Answer 6

pascal, Pa, N/m^2

Question 7

energy, work, quantity of heat

Answer 7

joule, J, N*m

Question 8

power, radiant flux

Answer 8

watt, W, J/s

Question 9

quantity of electricity, electric charge

Answer 9

coulomb, C

Question 10

electric potential, potential difference, electromotive force

Answer 10

volt, V, W/A

Question 11

electric resistance

Answer 11

ohm, ‎Ω

Question 12

10^24

Answer 12

yotta, Y

Question 13

10^21

Answer 13

zetta, Z

Question 14

10^18

Answer 14

exa, E

Question 15

10^15

Answer 15

peta, P

Question 16

10^12

Answer 16

tera, T

Question 17

10^9

Answer 17

giga, G

Question 18

10^6

Answer 18

mega, M

Question 19

10^3

Answer 19

kilo, k

Question 20

10^2

Answer 20

hector, h

Question 21

10^1

Answer 21

deca, da

Question 22

10^-1

Answer 22

deci, d

Question 23

10^-2

Answer 23

centi, c

Question 24

10^-3

Answer 24

milli, m

Question 25

10^-6

Answer 25

micro, mu

Question 26

10^-9

Answer 26

nano, n

Question 27

10^-12

Answer 27

pico, p

Question 28

10^-15

Answer 28

femto, f

Question 29

10^-18

Answer 29

atto, a

Question 30

10^-21

Answer 30

zepto, z

Question 31

10^-24

Answer 31

yocto, y

Question 32

minor species in a solution

Answer 32

solute

Question 33

major species in a solution

Answer 33

solvent

Question 34

how much solute is in a given volume or mass

Answer 34

concentration

Question 35

number of moles per liter of solution

Answer 35

molarity, M

Question 36

Avogadro’s number of atoms/molecules/ions

Answer 36

mole, 6.022 x 10^-23 1/mole

Question 37

the number of grams containing Avogadro’s number of atoms

Answer 37

atomic mass

Question 38

the sum of atomic masses of the atoms in the molecule

Answer 38

molecular mass

Question 39

mostly dissociated into ions in solution

Answer 39

strong electrolyte

Question 40

partially dissociated into ions in solution

Answer 40

weak electrolyte

Question 41

concentration of something dissociated into solution

Answer 41

formal concentration, F

Question 42

molecular mass of a strong electrolyte

Answer 42

formula mass, FM

Question 43

number of moles per kilogram of solvent

Answer 43

molality, m

Question 44

mass of solute/mass of solution x 100

Answer 44

weight percent, wt%

Question 45

volume of solute/volume of solution x 100

Answer 45

volume percent, vol%

Question 46

mass per unit volume

Answer 46

density

Question 47

mass substance/mass sample x 10^6

Answer 47

parts per million, ppm

Question 48

mass substance/mass sample x 10^9

Answer 48

parts per billion, ppb

Question 49

if a system at equilibrium is disturbed, the direction to which the system proceeds, is such that the disturbance is partially upset

Answer 49

Le Chatelier’s Principle