What is the importance of moles?
relating factor ratio
What makes up molar mass?
grams per one mole
What do moles represent?
the number of atoms/% of each element
What are examples of particles?
atoms, molecules, formula units, ions
What is the number for particles per one mole called?
Avogadro's number
What is Avogadro's number?
6.022 * 10^23
The molar mass is the mass in grams of one _____ of an _____________ or _______________
mole, element, compound
Formulas for ___________ show the elements and the number of atoms of each element in a molecule
covalent compounds
Formulas for ______________________ show the simplest ratio of cations and anions in any pure sample
ionic compounds
Avogadro's number is named after who?
Amadeo Avogadro
One mole of anything is _______ of that thing
6.022 * 10^23 units
The numerical value of the mole is defined as being equal to the number of _____ exactly in 12 g of pure carbon-12. This definition of the mole establishes a relationship between _____ (grams of carbon) and the number of _____ (Avogadro's number)
atoms, mass, atoms
The mass of 1 mol of atoms of an element is its _________.
molar mass
The value of an element's molar mass in grams per mole is numerically equal to the element's ________ in amu
atomic mass
The lighter the atom, the less _____ in one mole of that atom
mass
The molar mass of any element is a _______ between grams of that element and moles of that element
conversion factor
Why does a Avogadro's mole number have to be so large?
because atoms are so small