What is the study of quantative relationships between reactants and products in a chemical reaction.
100
what is the molar mass of NaCl?
58.5
100
The mass of a mole of zinc equals the atomic mass of zinc expressed in what?
Grams
100
How many moles of CO2 are formed when 40 moles of oxygen is consumed?
CH4(g)+2O2(g)=CO2(g)+2H2O(g)
20 moles
100
What mass, grams, of calcium carbonate is required to produce 1.57 moles of carbon dioxide?
____CaCO3 = ____ CaO + ____ CO2
157 grams of calcium carbonate
200
Define mole.
the unit used to count number of molecules, or formula units of substances.
200
What is the molar mass of H2O
18
200
The term molecular mass is used only for what kind of compounds?
Covalent
200
CH4(g)+2O2(g)=CO2(g)+2H2O(g)
How many moles of CH4 are needed to form 200 moles of water?
100 moles
200
Calculate the number of grams of LiOH formed when 2.55 moles of Li3N react with water?
____ Li3N + ____ H2O = ____ LiOH + ____ NH3
183 grams of lithium hydroxide
300
Define molar mass.
What is the mass of one mole of a pure substance.
300
What is the molar mass of C6H5OH
94
300
The mass of one molecule of ammonia is its what?
molecular mass
300
3H2(g)+N2(g)=2NH3(g)
How many moles N2 will react with 100 moles of H2?
66.7 Moles
300
How many grams of carbon dioxide are formed when 5.53 grams of ethyl alcohol, C2H5OH, are produced from glucose, C6H12O6, according to the equation below.
_____ C6H12O6 = ___ C2H5OH + ____ CO2
5.3 grams of carbon dioxide
400
Define molar volume.
The volume that a mole of gas occupies at a pressure of one atmosphere and a temp. of 0.00 degrees C
400
What is the molar volume of CaCO3
100.1
400
compared to the number of molecules in a mole of hydrgen gas (H2), the number of molecules in a mole of water (H2O) is what?
twice as many
400
2NO(g)+O2(g)=2NO2(g)
How many moles of O2 combine with 500 moles of NO?
6.7 moles
400
For the reaction given below, 7.54 moles of sodium hydroxide are mixed with 4.8 moles of H2S. How many moles of sodium sulfide are formed?
____ NaOH + _____ H2S =____ Na2S + ____ H2O
3.77 moles of sodium sulfide
500
Define molecualr mass.
the mass in atomic mass units of one molecule.
500
What is the molar volume of Ca(OH)2
75.1
500
The number of atoms in one mole of sodium metal is what?
6.02 x 10^23
500
2NO(g)+O2(g)=2NO2(g)
How many moles of O2 are left over if 80 moles of NO is mixed with 200 moles of O2 and the mixture reactants?
40 moles
500
How many grams of carbon dioxide would be formed from the combustion of 20 grams of propane and 75 grams of oxygen.
___ C3H8(g) + ____ O2(g) = ____ CO2(g) + ___ H2O(g)