關(guān)于英文版化學(xué)實驗報告

關(guān)于英文版化學(xué)實驗報告關(guān)于英文版化學(xué)實驗報告

篇一：英文版化學(xué)實驗報告

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：英文版化學(xué)實驗報告

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：化學(xué)專業(yè)英語實驗報告

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