Moles Flashcards
1
Q
What is the relative charge and mass of a proton?
A
Charge: +1
Mass: 1
2
Q
What is the relative charge and mass of a neutron.
A
Charge: 0
Mass: -1
3
Q
What is the relative charge and mass of an electron?
A
Charge: -1
Mass: 1/1836
4
Q
What are isotopes?
A
Atoms of the same element with different numbers of neutrons.
5
Q
What are carbons 3 most common isotopes?
A
12C 13C and 14C
6
Q
How do you calculate the number of moles?
A
Number of moles=mass/relative formula mass
