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Acidity of Carboxylic Acids

Write the bal...

Question

Write the balanced equation for the preparation of the following salts in the laboratory: (a) A soluble sulphate by the action of an acid on an insoluble base.

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Solution

Magnesium carbonate is an insoluble weak base when reacts with sulphuric acid it produce soluble magnesium sulphate \((MgSO_{4})\)water and carbon dioxide. The equation for the reaction can be given as , \(MgCO_{3}+H_{2}SO_{4}\rightarrow MgSO_{4}+H_{2}O +CO_{2}\)

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Write the balanced equations for the preparation of the following salts in the laboratory :

(a) A soluble sulphate by the action of an acid on an insoluble base,

(b) An insoluble salt by the action of an acid on another salt,

(c) An insoluble base by the action of a soluble base on a soluble salt,

(d) A soluble sulphate by the action of an acid on a metal.

The following is a list of methods for the preparation of salts.

A - direct combination of two elements.

B - reaction of a dilute acid with a metal.

C - reaction of a dilute acid with an insoluble base.

D - titration of a dilute acid with a solution of soluble base.

E - reaction of two solutions of salts to form a precipitate.

Choose from the above list A to E, the best method of preparing the following salts by giving a suitable equation in each case :

1. Anhydrous ferric chloride, 2. Lead chloride,

3. Sodium sulphate, 4. Copper sulphate.

Q. Give the name of a soluble lead salt and write the equation for the action of heat on this salt. Write the equation for the preparation of nitric acid from potassium nitrate.

Q. Write equations for the laboratory preparation of the following salts, using sulphuric acid:
(i) iron (II) sulphate from the iron.
(ii) copper sulphate from copper.
(iii) lead sulphate from lead nitrate.
(iv) sodium sulphate from sodium carbonate.

Q. Write the balanced equation for the preparation of the following salts in the laboratory: (c) An insoluble base by the action of a soluble base on a soluble salt

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Acidity of Carboxylic Acids

Standard XII Chemistry

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