Formulas
Conversions Competencies Problems
Units
100
100
100
200
100
200
200
200
400
200
300
300
300
600
300
400
400
400
800
400
500
500
500
1000
500
Grams to Moles
grams x moles
grams
Ideal Gas Law
PV=nRT
Molality
mole of solute
Kg of solvent
Percent Yield
actual x 100
theoretical
ΔHrxn
[Products] – [Reactants]
1 atm = _____ torr
760 torr
1 mole = ______
molecules
6.022 x
23
10
molecules
10 mL = __ cc
10 cc
10 Hg = ___ cg
100000 cg
20 g C = ___ mole C
20g C x 1 mol C = 1.7 mol
12.011 g C
Give the symbol
for Sodium.
Na
How many protons
70
are in 31Ga?
31
Give the electron
configuration of
Ni.
28
1s2 2s2 2p6 3s2
3p6 4s2 3d8
What is the IUPAC
name for Sn(CN)4
Tin (IV) Cyanide
Balance the chemical formula.
__Fe2O3 + __ CO -> __Fe + __CO2
1 Fe2O3 + 3 CO -> 2 Fe + 3 CO2
How many molecules are
in 13.2 grams of Na?
23
10
3.46 x
molecules
Given the below reaction and bond
energies, calculate the ΔHrxn of the
reaction.
H
H
H
H
|
|
|
|
H – C = C – H + Cl – Cl –> H – C – C – H
|
|
Cl Cl
-156 kJ
Draw the Lewis electron dot
structure and fill in the blanks
for H2CO3.
Electron Geometry
________________
Type of Hybrid
________________
Molecular Geometry
________________
Polarity
________________
Sigma Bonds
________________
Pi Bonds
________________
O-H
|
O=C–O–H
Electron Geometry = Trigonal planar
Type of Hybrid = Sp2
Molecular Geometry = Trigonal planar
Polarity = Polar
Sigma Bonds = 5
Pi Bonds = 1
Calculate the mole
fraction of water in a
17.2% by mass
solution of KI.
.0221
Find the volume of fluorine gas, in
the absence of water vapor, collected
over water. The mixture of gases
occupy a volume of 65 mL at a
atmospheric pressure of 766.2 torr
and a temperature of 67˚C. The
vapor pressure of water at 67˚C is
152.7 mmHg.
52 mL
What unit denotes weight?
grams
What does Joules
measure?
Energy
What is the unit for
molarity?
mole of solute or M
Liters of solution
What unit measures absolute
temperature?
Kelvin
What is the unit on mole
fraction?
Trick question. Mole
fraction has no units
Final Jeopardy
The Category is:
Calculations
Given the equation
below:
2 H2 + O2 –> 2H2O
Calculate the theoretical
yield of H2O if 14.7 g of
H2 is reacted with 102.2g
of O2.
115.1 g of H2O