Equations and Prefixes Flashcards
1
Q
Microscope magnification
A
Magnification of Objective lens x Magnification of eyepiece lens
2
Q
Magnification
A
Size of image / Size of object
3
Q
Neutrons
A
Atomic mass - Atomic number
4
Q
Protons
A
Atomic number
5
Q
Electrons in an atom
A
Atomic number
6
Q
Relative atomic mass
A
(% isotope 1 x mass + % isotope 2 x mass) / 100
7
Q
Relative formula mass
A
sum of mass of all atoms in a compound
8
Q
Moles
A
Mass / Relative formula mass
9
Q
Concentration (mass)
A
mass / volume
10
Q
Concentration (moles)
A
moles / volume
11
Q
Change in energy
A
(Bond energy of products) - (Bond energy of reactants)
12
Q
Rate of reaction
A
Change in quantity / time
13
Q
Formula of an alkane
A
CnH2n+2
14
Q
Formula of an alkene
A
CnH2n
15
Q
Rf
A
Distance moved by substance / Distance moved by solvent
16
Q
giga
A
10^9
17
Q
mega
A
10^6
18
Q
milli
A
10^-3
19
Q
micro
A
10^-6
20
Q
nano
A
10^-9
