C.1 and 2 Flashcards
Grams –> Moles
g/(g/mol)
Moles –> Particles
Mol(6.023x10^23/1mol)
Moles –> Grams
Mol(g/mol)
Particles –> Moles
Particles(1 mol/6.023x10^23)
How to find neutron
Mass number-protons
How to find natural abundance
(x)+(x-100)
g –> mg
x1000
mg –> g
x .001
Mass of an electron
Charge/(charge/mass)
How to calculate atomic mass
(relative abundance)(amu)+(relative abundance)(amu)…
How to calculate molecular mass
amu+amu…
Homogeneous
Uniform throughout
Heterogeneous
Not uniform throughout
Tera-
1 x 10^12
Giga-
1 x 10^9
Mega-
1 x 10^6
Kilo-
1 x 10^3
Deci-
1 x 10^-1
Centi-
1 x 10^-2
Milli-
1 x 10^-3
Micro-
1 x 10^-6
Nano-
1 x 10^-9
Pico-
1 x 10^-12
Formula for Kelvin
K = C + 273.15
Formula for density
d=m/v
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
Accuracy
How close a measurement is to the true value
Precision
How close a group of measurements are to each other
