Nomenclature
SO2
Sulfur dioxide
Covalent bonds form between two or more ____
nonmetals
111g, 112g, 111g ; Actual value = 118g
Precise
H2O
18 g/mol
Number of atoms in 2 moles of water
12.04 x 1023 or 1.204 x 1024
MgO
Magnesium oxide
F-F ; polar or nonpolar
nonpolar
12ml, 14ml, 12ml Actual value 12 ml
Accurate
CH4
16 g/mol
N2 + 3 H2 -----> 2 NH3 ; How many moles of ammonia form if 3 moles of nitrogen react with excess hydrogen?
6 moles
PCl5
Phosphorus pentachloride
The ability of an element to draw electrons toward it in a molecule
Electronegativity
10 atm, 10 atm, 10 atm Actual value 10 atm
Accurate and precise
K2O
94 g/mol
N2 + 3 H2 -----> 2 NH3 ; How many moles of ammonia form if 20 grams of nitrogen react with excess hydrogen?
1.43 moles
Ca(OH)2
Calcium hydroxide
H-F ; polar or nonpolar
polar
Error associated with the measurer
Precision
Al(OH)3
78 g/mol
N2 + 3 H2 -----> 2 NH3 ; How many grams of ammonia form if 3 moles of nitrogen react with excess hydrogen?
102 grams
AlF3
Aluminum fluoride
Developed electronegativity chart
Linus Pauling
Error associated with instruments
Accuracy
C6H12O6
180 g/mol
N2 + 3 H2 -----> 2 NH3 ; How many liters of ammonia form if 3 moles of nitrogen react with excess hydrogen at STP?
134.4 L