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प्रश्न
Write a balanced equation for the preparation of the following salts:
Zinc carbonate from Zinc sulphate
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उत्तर
`ZnSO_4 + Na_2CO_3 -> Na_2SO_4+ZnCO_3`
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संबंधित प्रश्न
The pH of a salt used to make tasty and crispy pakoras is 14. Identify the salt and write a chemical equation for its formation. List its two uses.
Write the chemical name and formula of common salt.
What are the two main ways in which common salt (sodium chloride) occurs in nature?
Why is sodium chloride required in our body?
Give any two uses of common salt (sodium chloride).
Name three products of the chlor-alkali process. State two uses of each of these products.
How many molecules of water of crystallisation (per formula unit) are present in:
copper sulphate crystals?
Explain ‘salt hydrolysis’
Which of the following is not an acidic salt?
The Salt Story
From: The New Indian Express 9 March 2021
The salt pans in Marakkanam, a port town about 120 km from Chennai are the third largest producer of salt in Tamil Nadu. Separation of salt from water is a laborious process and the salt obtained is used as raw materials for manufacture of various sodium compounds.
One such compound is Sodium hydrogen carbonate, used in baking, as an antacid and in soda acid fire extinguishers.
The table shows the mass of various compounds obtained when 1litre of sea water is evaporated.
| COMPOUND | FORMULA | MASS OF SOLID PRESENT /g |
| Sodium Chloride | NaCl | 28.0 |
| Magnesium Chloride | MgCl2 | 8.0 |
| Magnesium Sulphate | MgSO4 | 6.0 |
| Calcium Sulphate | CaSO4 | 2.0 |
| Calcium Carbonate | CaCO3 | 1.0 |
| TOTAL AMOUNT OF SALT OBTAINED | 45.0 | |
How many grams of Magnesium Sulphate are present in 135g of solid left by evaporation of sea water?
