Vocabulary
The average mass of naturally occurring atoms measured in atomic mass units
What is atomic mass?
How many Grams are in 4.98 Moles NaCl?
What is 290.83 grams?
What percentage of H2O is composed of Oxygen?
What is 88.9%?
How many atoms are in 3.8 moles of Cu?
What is 2.28 x 1024 atoms Cu?
The percentage by weight a certain element makes up of the compound.
Avogadros number
What is 6.022 x 1023 molecules
How many grams are in 2 moles of LiF?
What is 51.8 grams LiF?
What percentage of H2O is composed of Hydrogen?
What is 11.11%?
How many grams are in 6.12 x 1028 molecules of H2O?
What is 1.83 x 106 grams H2O?
Avogadro's number.
What is 6.022 x 10^23?
The sum of the relative masses of the elements present in a formula measured in grams.
What is the molar mass?
How many grams are in 29 Moles of H2O?
What is 522 grams H2O?
Determine the mass of Oxygen in a sample of 600 grams H2O.
What is 533.3 grams Oxygen?
How many atoms are in 3.8 grams of Cr?
What is 4.409 x 1022 atoms of Cr?
How many moles are present in 34 grams of Cu(OH)2?
What is 0.35 mol Cu(OH)2?
Has a mass equal to it's relative formula mass in grams. Contains 6.022 x 10 23 Molecules.
What is 1 Mole?
Ammonia, NH3, is widely used as a fertilizer and in many household cleaners. How many grams of ammonia are in 3.6 Moles of ammonia?
What is 61.2 grams NH3?
Determine the % composition of phosphorus in K3PO4?
What is 14.6%?
How many grams are there in 7.50 x 1023 molecules of H2SO4?
Balance the following equation:
__LiOH + __H2SO4 --> __Li2SO4 + __H2O
What is: 2LiOH + H2SO4 --> Li2SO4 + 2H2O
States that mass is neither created nor destroyed during ordinary chemical or physical reactions. (This is why we balance chemical equations!)
What is the law of conservation of mass?
How many grams are in 4.68 moles of Cu?
What is 297.18 grams Cu?
How many grams of phosphorus are in 300 grams of K3PO4?
What is 43.8 grams?
How many molecules are in 122 grams of NO2?
Balance the following equation:
__Fe+__Cl2 ---> __FeCl
What is 2Fe+ Cl2 ---> 2FeCl?