Key equations and relationships Flashcards

1
Q

Relationship between Mass Number (A), Number of Protons (p), and Number of Neutrons (n)

A

A = number of protons (p) + number of neutrons (n)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Atomic Mass

A

Atomic mass = Σn(fraction of isotope n) x (mass of isotope n)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Relationship between Density (d), Mass (m), and Volume (V)

A

d = m/V

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Avogadro’s Number

A

1 mol = 6.0221421 x 1023 particles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

The First-Order Rate Law

A

Rate = kN

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

The Half-Life Equation

A

k = rate constant

t1/2=0.693/k

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

The Integrated Rate Law

A

Nt= number of radioactive nuclei at time t

N0 = initial number of radioactive nuclei

ln (Nt/N0) = -kt

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Einstein’s Enegery-Mass Equation

A

E = mc2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

milli

A

10-3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

centi

A

10-2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

deci

A

10-1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

micro

A

10-6

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

nano

A

10-9

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

pico

A

10-12

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

femto

A

10-15

17
Q

atto

A

10-18

18
Q

kilo

A

103

19
Q

mega

A

106

20
Q

giga

A

109

21
Q

tera

A

1012

22
Q

peta

A

1015

23
Q

exa

A

1018

24
Q

Temperature equation

A

K = ºC + 273.15

ºC = (ºF -32)/1.8

ºF = 1.8(ºC) + 32

0K = -273.15 ºC = -459.67 ºF