sulfur -13

ammonia gas -1

NH3

ammonia gas -2

NH4+

the main use of ammonia

to make fertilizers

a nitrogen containing fertilizer made from sulfuric acid

ammonium sulfate (NH4)2SO4

preparing ammonia -1

industry

preparing ammonia -2

in lab

preparing ammonia in industry

by Haber process

conditions for haber process

temp 450

pressure 200atm

catalyst - iron

temperature condition for preparing ammonia by haber process

450C

pressure condition for preparing ammonia by haber process

200atm

cataylst used for preparing ammonia by haber process

iron

conditions to produce H2SO4

temp 450

pressure 1-3 atm

catalyst V2SO4

temperature condition to produce H2SO4

450C

pressure condition to produce H2SO4

1-3 atm

catalyst used to produce H2SO4

vanadium oxide V2O5

producing ammonia in lab

ammonium salt + base → ammonia + salt + water

example of ammonia produced in lab

NH4Cl + NaOH → NH3 + NaCl + H2O

we cant use H2SO4 ss a drying agent while preparing ammonia

as NH3 is alkali gas hence would react with the acid H2SO4

NH3 density is

lower than air

NH3 is obtained

upward delivery

NH3(g) + HCL(g) →

NH4Cl(s) white smoke

test for ammonia gas

damp red limitus paper, turns blue

compound will not produce ammonia when heated with ammonium sulfate

sulfuric acid H2SO4

uses of sulfur

to make sulfuric acid

producing H2SO4 by contact process -1

S+O2→SO2 burn sulfur in air

producing H2SO4 by contact process -2

2SO2+O2←→ 2SO3

2- oxidize SO2 by xxx using

oxygen

2- using xxx as cataylst

V2O5

2- with the pressure xxx and temperature xxx

2atm,450C

producing H2SO4 by contact process -3

SO3 + H2sO4 → H2S2O7 oleum

3- absorb SO3 by xxx to form xxx

H2SO4 , olem

oleum

H2S2O7

producing H2SO4 by contact process -4

H2S2O7 + H2O → 2H2SO4

4) add xxx of xxx to form xxx

right amount, distilled water, sulfuric acid

S+O2→

SO2 burn sulfur in air to form SO2

SO2+O2→

SO3, oxidize SO2 by oxygen to form SO3

SO3+H2SO4 →

oleum H2S2O7

H2S2O7 + H2O →

H2SO4.

SO3 react with water to form xxx, the reaction is xxx

H2SO4 , exothermic

two major sources of sulfur - 1

underground deposit of the element sulfur

two major sources of sulfur - 2

sulfur compounds from natrual gas and petroleum

describe how sulfur dioxide is changed into trioxide

2SO2 + O2 → 2SO3, oxidize SO2 by oxygen

describe the conditions of sulfur dioxide changed into trioxide

temp of 450, pressure of 2atm, catalyst V2SO5

sulfur trioxide can be made from sulfuric acid, why is this important

use SO3 to make sulfuric acid in contact process