C.1 and 2 Flashcards
1
Q
Grams –> Moles
A
g/(g/mol)
2
Q
Moles –> Particles
A
Mol(6.023x10^23/1mol)
3
Q
Moles –> Grams
A
Mol(g/mol)
4
Q
Particles –> Moles
A
Particles(1 mol/6.023x10^23)
5
Q
How to find neutron
A
Mass number-protons
6
Q
How to find natural abundance
A
(x)+(x-100)
7
Q
g –> mg
A
x1000
8
Q
mg –> g
A
x .001
9
Q
Mass of an electron
A
Charge/(charge/mass)
10
Q
How to calculate atomic mass
A
(relative abundance)(amu)+(relative abundance)(amu)…
11
Q
How to calculate molecular mass
A
amu+amu…
12
Q
Homogeneous
A
Uniform throughout
13
Q
Heterogeneous
A
Not uniform throughout
14
Q
Tera-
A
1 x 10^12
15
Q
Giga-
A
1 x 10^9
16
Q
Mega-
A
1 x 10^6
17
Q
Kilo-
A
1 x 10^3
18
Q
Deci-
A
1 x 10^-1
19
Q
Centi-
A
1 x 10^-2
20
Q
Milli-
A
1 x 10^-3
21
Q
Micro-
A
1 x 10^-6
22
Q
Nano-
A
1 x 10^-9
23
Q
Pico-
A
1 x 10^-12
24
Q
Formula for Kelvin
A
K = C + 273.15
25
Formula for density
d=m/v
26
Sig fig rules
Zeros between non-zero values are significant
Zeros to the left of a non-zero digit are NOT significant
Zeros the the right are significant UNLESS there is no decimal place
27
Accuracy
How close a measurement is to the true value
28
Precision
How close a group of measurements are to each other
