CHAPTER 3: AMOUNT OF SUBSTANCE Flashcards
1
Q
What is one mol?
A
6.02 x 10^23 which is avogradro’s constant.
2
Q
How do you find the mass of a mol in an element?
A
One mol of an element is its mass number eg carbon would be 12g
3
Q
What are moles used to calculate?
A
The amount of substance in a particle.
4
Q
What is molar mass?
A
The mass of the moles in a substance given in grams.
5
Q
What the equation for amount of substance?
A
amount = mass / molar mass
6
Q
What is the molecular formula?
A
The number of atoms of each element in a molecule.
7
Q
What structure are all ionic compunds?
A
Giant crystalline
8
Q
How do you calculate the relative molecular mass?
A
Add up the atomic masses of the elements within the molecule.
