CHEMISTRY
COMPUTING
FORMULA MASS WORKSHEET
Directions:
Find
the
formula
mass
of the
following
compounds. Round atomic
masses
to the
tenth
of
a
decimal place. Place your
final
answer
in
the
FORMULA MASS COLUMN.
Problem
Set-up
example:
Find
the
formula
mass
of
Ca(NO3)2
Ca: 1 x
40.1
=
40.1
N:
2 x
14.0
=
28.0
O:
6 x
16.0
=
96.0
Formula
Mass
=
164.1
COMPOUND
AgNO2
NiSO3
Ca3(P04)2
HgS04
Fe(N03)3
KBr
BeCr2Oy
Co(CI03)2
Cu2C4H4<D6
CuSO4
• 7
H2O
FORMULA
MASS
COMPOUND
ZnCl2
K3P04
AI2(S04)3
MgCrC>4
CaC4H4Oe
NaCI
K2Cr2O7
H2SO4
Cu(OH)2
MgSO4
• 5
H2O
FORMULA
MASS