Pay attention to the names of the reactants. Practice in reading these names. Read out them to your groupmates.

Zn – zinc	O2 – oxygen
HCl – hydrochloric acid	BaCl2 – barium chloride
KMnO4 - potassium permanganate	CaO – calcium oxide
K2MnO4 - potassium manganate	H2SO4 – sulphuric acid
ZnCl2 – zinc chloride	CO2 – carbon dioxide
MnO2 – manganese oxide (IV)	BaSO4 – barium sulphate
H2 – hydrogen	CaCO3 – calcium carbonate

Look at the picture and comment on it from the point of view of chemistry.

Replace the underlined words with their English equivalents from the list. Give the general idea of the text in 2-3 sentences.

fertilizers

petroleum refining

pickling (cleaning)iron rayon battery acid impurities

 

USES OF SULPHURIC ACID

Sulphuric acid is one of the most important industrial chemicals. More of it is made each year than is made of any other manufactured chemical. It has widely varied uses and plays some part in the production of nearly all manufactured goods. The major use of sulphuric acid is in the production of удобрений, e.g., superphosphate of lime and ammonium sulfate. It is widely used in the manufacture of chemicals, e.g., in making hydrochloric acid, nitric acid, sulfate salts, synthetic detergents, dyes and pigments, explosives, and drugs. It is used in очистке нефти to wash примеси out of gasoline and other refinery products.

Sulphuric acid is used in processing metals, e.g., in травлении iron and steel before plating them with tin or zinc. Вискоза is made with sulfuric acid. It serves as the electrolyte in the lead-acid storage battery commonly used in motor vehicles (acid for this use, containing about 33% H₂SO₄ and with specific gravity about 1.25, is often called аккумуляторной кислотой).

 

 

Watch the video 'Sulphuric Acid Production'. Decide if the sentences are true (T) or false (F).

 

1. Sulphuric acid is used in the drug production.
2. The small plant makes 60 tons of acid per day.
3. Sulphur is transported as a liquid around 200 degrees Celsius.
4. In the converter sulphur dioxide reacts with oxygen.
5. The catalyst is the most effective at 840 degrees Celsius.
6. About 95% of the original SO2 has been converted to SO3.
7. The acid concentration must be about 98% at the final stage.

Explain the following words and word-combinations in English.

Reactant	Electrolysis
Product	Neutralization reactions
Breakdown	Redox reactions

Make up the sentences of your own with the words in bold of the text B. Provide your own examples of combustion reactions and precipitation reactions.

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Project Work

8. Prepare a report upon one of the following topics:

1. Inorganic chemistry as a science.

2. Differences and similarities between inorganic and organic chemistry.

3. Types of inorganic chemical reactions.

4. The Periodic table as the basis of inorganic chemistry.

9. Study the web site www.sciencedaily.com and prepare a report or presentation on inorganic chemistry news. Share the information with the groupmates.

 

UNIT 3. ANALYTICAL CHEMISTRY

I. Lead-in

1. What topics does analytical chemistry deal with?

2. What is the modern definition of analytical chemistry?

3. What are the two main types of chemical analysis?

4. What methods (techniques) of analysis do you know?