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Analytical Chemistry > Exam 1 > Flashcards

Exam 1 Flashcards

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1
Q

giga symbol

A

G

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2
Q

giga factor

A

10^9

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3
Q

mega symbol

A

M

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4
Q

mega factor

A

10^6

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5
Q

kilo symbol

A

k

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6
Q

kilo factor

A

10^3

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7
Q

hecto symbol

A

h

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8
Q

hecto factor

A

10^2

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9
Q

deka symbol

A

da

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10
Q

deka factor

A

10^1

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11
Q

deci symbol

A

d

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12
Q

deci factor

A

10^-1

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13
Q

centi symbol

A

c

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14
Q

centi factor

A

10^-2

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15
Q

milli symbol

A

m

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16
Q

milli factor

A

10^-3

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17
Q

micro symbol

A

u

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18
Q

micro factor

A

10^-6

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19
Q

nano symbol

A

n

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20
Q

nano factor

A

10^-9

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21
Q

pico symbol

A

p

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22
Q

pico factor

A

10^-12

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23
Q

femto symbol

A

f

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24
Q

femto factor

A

10^-15

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25
Q

atto symbol

A

a

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26
Q

atto factor

A

10^-18

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27
Q

zepto symbol

A

z

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28
Q

zepto factor

A

10^-21

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29
Q

1 inch =

A

2.54 cm

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30
Q

1 cal =

A

4.184 J

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31
Q

delta H = (+)

A

heat is absorbed, endothermic

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32
Q

delta H = (-)

A

heat is liberated, exothermic

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33
Q

delta S = (+)

A

products more disordered than reactants

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34
Q

delta S = (-)

A

products less disordered than reactants

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35
Q

free energy =

A

delta G = delta H - T(delta S)

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36
Q

free energy and equilibrium =

A

K = e^-(delta G knot)/RT

37
Q

R =

A

8.314 J/molK

38
Q

If a reaction is at equilibrium and products are added (or reactants are removed)

A

the reaction goes to the left (reactant favored)

39
Q

If a reaction at equilibrium and reactants are added (or products are removed)

A

the reaction goes to the right (product favored)

40
Q

delta g

A

change in free energy

41
Q

delta h

A

change in enthalpy

42
Q

delta s

A

change in entropy

43
Q

length SI unit

A

meter (m)

44
Q

mass SI unit

A

kilogram (kg)

45
Q

time SI unit

A

second (s)

46
Q

electric current SI unit

A

ampere (A)

47
Q

temperature SI unit

A

kelvin (K)

48
Q

luminous intensity SI unit

A

candela (cd)

49
Q

amount of substance SI unit

A

mole (mol)

50
Q

plane angle SI unit

A

radian (rad)

51
Q

solid angle SI unit

A

steradian (sr)

52
Q

frequency SI unit

A

hertz (Hz)

53
Q

force SI unit

A

newton (N)

54
Q

pressure SI unit

A

pascal (Pa)

55
Q

Energy, work, quantity of heat SI unit

A

joule (J)

56
Q

Power, radiant flux SI unit

A

watt (W)

57
Q

Quantity of electricity, electric charge SI unit

A

coulomb (C)

58
Q

Electric potential, potential difference, electromotive force SI unit

A

volt (V)

59
Q

Electric resistance SI unit

A

ohm (omega)

60
Q

electric capacitance SI unit

A

farad (F)

61
Q

ppm

A

mass of substance/mass of sample x 10^6

62
Q

ppb

A

mass of substance/mass of sample x 10^9

63
Q

dilution formula

A

M1V1=M2V2

64
Q

Relative uncertainty

A

absolute uncertainty/magnitude of measurement

65
Q

percent relative uncertainty

A

100 x relative uncertainty

66
Q

standard deviation

A

s = sqrt((sum(xi-xbar)^2)/(n-1))

67
Q

delta G = +

A

reaction is unfavorable

68
Q

delta G = -

A

reaction is favorable

69
Q

equilibrium constant

A

K=[C]^c[D]^d/[A]^a[B]^b

70
Q

Gibbs Free Energy of Reaction

A

delta G knot = -RTlnK

71
Q

large K

A

product favored

72
Q

small K

A

reactant favored

73
Q

Gibb’s Test

A

outlier-bar/standard deviation

74
Q

Q-test

A

for outliers

75
Q

Qexp =

A

Gap/Range

76
Q

Qexp>Qtable

A

reject the data with the indicated confidence level

77
Q

Qexp<Qtable

A

Retain the data point

78
Q
A
79
Q

|xbar1-xbar2|<tspooled(sqrt(N1+N2)/N1N2))

A

Accept the null hypothesis

80
Q

Confidence interval equation

A

u = xbar +- ts/sqrt(N)

81
Q

+- 1 o =

A

68.3%

82
Q

+- 2 o =

A

95.5%

83
Q

+- 3 o =

A

99.7%

84
Q

addition and subtraction propagation of error

A

sy = sqrt((sa)^2+(sb)^2)

85
Q

multiplication and division propagation of error

A

sy/y = sqrt((są/a)^2 + (sb/b)^2

86
Q

molarity (M)

A

moles of solute/liters of solution

87
Q

molality (m)

A

moles of solute/kg of solvent

88
Q

spooled =

A

sqrt((sum(xi-xbar)^2 + sum(xi-xbar)^2)/N1+N2-2)

Analytical Chemistry (1 decks)

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