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关于英文版化学实验报告关于英文版化学实验报告
篇一:英文版化学实验报告
Title:
Preparation
of
Fe
scrap
from
waste
2SO4.FeSO4.6H2O
The
purpose
of
the
experiment
Learn
the
method
used
scrap
iron
preparation
of
ferrous
ammonium
sulfate.
Familiar
with
the
water
bath,
filtered,
and
evaporated
under
reduced
pressure
and
crystallization
basic
working.
The
experimental
principle,
the
iron
and
sulfuric
acid
to
generate
reactive
ferrous
sulfate,
ferrous
sulfate
and
ammonium
sulfate
in
an
aqueous
solution
of
equal
molar
interaction,
becomes
less
soluble
blue
generate
ferrous
ammonium
sulfate.
Fe+H2SO4=FeSO4+H2
FeSO4+
2SO4+6H2O=2SO4.FeSO4.6H2O
Usually
ferrous
rocks
are
easily
oxidized
in
air,
but
after
the
formation
of
relatively
stable
perfunctory,
not
to
be
oxidized.
Experiment
to
use
instruments,
scales,
constant
temperature
water
bath,
pumps,
basins,
cups,
10ml
graduated
cylinder,
asbestos
mesh,
glass,
tripod,
alcohol
lamp,
funnel.
Iron
pieces
to
a
solid
pharmaceutical
use,
use
of
acid
ammonium
sulfate
and
3mol
/
l
of
sulfuric
acid,
concentrated
sulfuric
acid.
The
experiment
was
divided
into
four
steps.
The
first
step
Said
iron
powder
4g
into
a
beaker
and
then
50ml
10ml,
3mol
/
L
H2SO4
was
added
to
the
same
beaker.
The
second
step
will
be
the
beaker
is
heated
to
no
more
bubbles,
and
then
filtered
hot
and
the
filtrate
was
then
filled
in
100ml
beaker.
The
third
step,
called
4g
2SO4,
and
the
resulting
ammonium
sulfate
and
5.3ml
of
water
to
form
a
saturated
solution,
and
then
add
it
to
the
ferrous
sulfate
solution,
adjusted
with
concentrated
sulfuric
acid
to
PH
=
1.
A
fourth
step,
the
third
step
the
solution
was
heated
in
a
water
bath
to
the
surface
until
the
film
is
crystallized,
it
was
slowly
cooled
and
then
filtered
under
reduced
pressure
to
stand
finally
dried,
weighed
and
the
yield
was
calculated.
The
results
obtained
8.1g
bluish
powdery
crystals.
Have
this
result
we
can
calculate
yield,
starting
with
the
first
step
we
tried
to
know
the
amount
of
iron,
should
this
we
can
calculate
the
theoretical
sulfate
ferrous
sulfate
is
0.03mol,
then
ferrous
sulfate
obtained
by
the
0.03molFeSO4
theoretical
value
of
ammonium.
FeSO4+2SO4+6H2O=FeSO4.2SO4.6H2O
0.03molX
mol
X=0.03mol
m=XM=0.03molⅹ392g/mol=11.76g
Yield
=
the
actual
value
of
the
formula
is
divided
by
the
theoretical
value
by
100%.it
will
be
calculated
into
the
data
obtained
in
a
yield
of
68.9%.
篇二:英文版化学实验报告
The
preparation
of
alkali
type
copper
carbonate
The
first:the
experiment
purpose
1.Master
the
methods
of
alkali
type
copper
carbonate
prepared
and
principle
2.Through
the
design
experiment
to
cultivate
independent
design
ability
and
chemical
research
thinking
The
second:the
experimental
principle
The
solubility
of
Cu2and
CuCO3
are
similar,
With
Cu22CO3
solid
precipitation
in
the
solution.
2CuSO4+2Na2CO3+H2O==Cu22CO3↓+2Na2SO4+CO2↑
The
third:the
experimental
steps
1.Solution
preparation
Disposes
0.5
mole
of
each
litre
acid
sour
coppers
and
sodium
carbonate
solution
each
100
milliliters.
2.The
feeding
order
and
raw
material
compare
the
exploration
According
to
2:1.6,2:2,2:2.4,2:2.8
allocated
proportion,
is
accepted
after
passing
an
examination
the
surface
disposition
acid
sour
copper
and
the
sodium
carbonate
solution,
joins
in
separately
8
test
tubes,
joins
rapidly
the
sulfuric
acid
copper
solutions
in
the
sodium
carbonate
solution,
vibrates
about
other
constant
temperature
ten
minutes
as
for
75
degrees
Celsius
water
baths
in,
the
inversion
feeding
order
recreates
one
time,
the
observation
has
the
precipitation
speed,
quantity
how
many
and
the
color,
discovers
the
optimum
condition.
3.Temperature
exploration
According
to
the
above
optimum
condition,
takes
the
acid
sour
copper
solutions
and
the
sodium
carbonate
solution
separately
under
50,
75
and
100
degrees
Celsius
responded
that,
discovers
the
optimum
temperature.
4.According
to
2,
3
step
exploration
optimum
condition
prepares
the
final
product,
and
with
the
distilled
water
lavation,
finally
dries
and
calls
heavily.
The
fourth:the
experimental
items
Instrument
and
material:
The
balance,
the
beaker,
the
glass
rod,
the
Volumetric
flask,
the
test
tube,
the
filter
flask,the
Buchner
funnel,
the
Erlenmeyer
flask
Chemicals:
Copper
carbonate,
sodium
sulfate
The
fifth:the
experimental
result
1.By
the
step
2,
the
observation
phenomenon
optimum
condition
is
equal
to
for
the
cupric
sulfate
compared
to
the
sodium
carbonate
2:2.4,
the
feeding
order
for
joins
the
sulfuric
acid
copper
solutions
to
the
sodium
carbonate
solution
in.
2.By
the
step
3,
the
observation
phenomenon
optimum
temperature
is
75
degrees
Celsius
3.According
to
the
copper
sulfate
solution
than
sodium
carbonate
solution
is
2:2.
4,
ten
times
magnification,
alkali
type
copper
carbonate
was
zero
point
five
grams,
according
to
the
reaction
equation
calculation
yield.
2CuSO4+2Na2CO3+H2O==Cu22CO3↓+2Na2SO4+CO2↑
2
1
0.5*0.02
X
2/=1/X
X=0.005
M=0.005*222=1.11g
Productive
rate:0.5/1.11*100%=45%
The
sixth
:
Questions
1.
Which
cupric
salt
suit
the
system
to
take
the
cupric
basic
carbonate?
Answer:Cu3
or
CuSO4
2.
The
reaction
temperature
has
what
influence
to
this
experiment?.
Answer:The
temperature
excessively
is
low,
the
response
speed
is
slow;
The
hyperpyrexia,
the
Cu22CO3
decomposition
is
CuO.
3.
Reaction
is
carried
out
at
what
temperature
will
appear
Brown
product?
What
is
the
brown
substance?
Answer:
The
temperature
is
equal
to
100
degrees
Celsius
and
this
brown
material
is
CuO.
篇三:化学专业英语实验报告
In
the
physiological
saline
the
sodium
chloride
content
determination
one,
the
experimental
goal
1、
the
study
silver
nitrate
standard
solution
configuration
and
the
demarcation
method
2、
the
grasping
law
raises
Si
Fa
to
determine
the
chloride
ion
the
method
principle
two,
the
experimental
principle
With
AgNO3
standard
solution
titration
Cl
-
Ag
+
+
Cl
-
=
=
AgCl,At
ph
7.0
-10.5
available
fluorescent
yellow
do
indicator
HFIn
=
=
FIn
+
H
+
Sp
before:
excessive,
AgCl
precipitation
adsorption
of
Cl
-
AgCl
Cl
-
+
FIn
-
After
Sp:
Ag
+,
excessive
AgCl
precipitation
Ag
+
adsorption,
adsorption
FIn
-
reprecipitation
AgCl,
Ag
+
+
FIn
-
=
=
AgCl,
Ag
+,
FIn
-
The
finish
color
changes:
from
yellowish
green
to
orange
Three,
instruments
and
reagents
Equipment
and
materials:Acid
type
buret
,
taper
bottle
,
volumetric
flask
,
pipette
,
measuring
cylinder
,
beaker
,
brown
reagent
bottles
,
analytical
balance,
platform
scale.
The
reagent
and
drug:
Analysis
of
AgNO3
,
NaCl
,
physiological
saline,
fluorescent
yellow
-
starch.
Fourth,
the
experimental
steps
Accurately
moving
25
ml
concentration
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