Atomic mass and the Mole Flashcards
1
Q
Falls under a section called … and spell it! :-)
A
Stoichiometry
2
Q
What is the mole?
BONUS CLUE: Not an animal.
A
A unit of measurement
3
Q
1 Mole is … Hexillion.
Give scientific notation.
This number is … constant.
A
1 Mole is 602 Hexillian
6,02 x 10^23
Avogadro’s constant
4
Q
What do we use the Mole to count?
A
Atoms.
5
Q
How do we work out how many Moles are in a substance if we are given grams?
A
n=m/M
number of moles is equal to sample mass (g)
divided by Molar mass (g.mol^-1)
6
Q
What is the definition of relative molecular mass?
A
The sum of atomic masses of the atoms in the molecule.
7
Q
What is the definition of Molar mass of a compounds?
A
The relative molecular mass expressed in grams per mole.
