How many atoms of iodine are in a mole of iodine?
6.02 x 1023
The number 6.02 x 1023 is called...
Avogadro's number
What is the molar mass of NaCl?
58.45g/mol
We use the periodic table to calculate...
molar mass
Which has more molecules or formula units (representative particles)?
1 mole H2O
1 mole Al(OH)3
1 mole NaCl
There are all the same
All the same
A mole of Neon contains
6.02 x 1023 _____.
Atoms
The molar mass of an element is the mass of one ____ of the element.
Mole
What is the molar mass of one molecule of Nitrogen N2?
28.02 g
Avogadro's number of representative particles is equal to one_____.
Mole
What is the molar mass of sodium?
22.990
What is the mass of one mole of aluminum?
26.982 g
What is the molar mass of Carbon?
12
The molar mass of CaCl2: Formula mass or Molecular mass?
Formula mass, because CaCl2 is Ionic
The molar mass of H2O: Formula mass or Molecular mass?
Molecular Mass, because H2O is Covalent
What is the molar mass of CO2?
44.01 g/mol
Which one is empirical?
H2O2
C2H6O12
CaCl2
N2O8
CaCl2
What is the percent by mass of magnesium in MgO?
60%
What are the units for molar mass?
grams/mole
What is the molar mass of MgCl2
95.21 g/mol
What is a mole?
The mole, symbol mol, is the SI base unit of the amount of substance. The quantity amount of substance is a measure of how many elementary entities of a given substance are in an object or sample.