Molar Mass
What are the units for molar mass?
g/mol
True or False: When solving Mole Conversions, the molar mass is NEEDED in order to solve.
TRUE.
If molar mass is not given to you, it must be solved for, in order to go from one unit to another.
What is the first thing you should be working on in the beginning of class?
BELLWORK
Molar Mass, is the amount of mass in grams of a substance for every ____ mole of that substance.
(What number goes in the blank?)
ONE (1)
molar mass = the amount of mass in grams per every 1 mole
How many moles are in 64.8 grams of O2? (Molar Mass of O2 = 31.998 g/mol)
2.025 mol
True or False: Unit 8 assignments can still be turned in during Unit 9?
FALSE.
Get those missing assignments turned in!!!
What is the molar mass of CH3? (don't forget to include your unit)
15.035 g/mol
How many grams are in 0.73 moles of CaCO3? (Molar mass of CaCO3 = 100.086)
73.063 grams
When ICE MELTS, is that a physical or chemical change?
Physical Change
What is the molar mass of Al2S3 ? (don't forget to include your unit)
150.144 g/mol
How many grams are in 3.3 moles of H2O?
59.45 grams
CEREAL is an example of a homogeneous or heterogeneous mixture?
Heterogeneous Mixture
What is the molar mass of Ag3(NO2)2? (don't forget to include your unit)
415.72 g/mol
How many moles are in 25.0 grams of Zn(NO3)2?
0.132 moles
Absolute Zero = 0 ___
What's the unit? (Celcius, Farenheit, or Kelvin)
Kelvin