Chapter 6: Problem 21

Which method is employed for the preparation of sulphate of \(\mathrm{Ba}\), \(\mathrm{Ca}\) and \(\mathrm{Pb}\) ?

Short Answer

Expert verified

Answer: The method employed for the preparation of sulphate of barium, calcium, and lead is precipitation.

Step by step solution

Identify the cations and anions in the given compounds

The given compounds are sulphates of barium (Ba), calcium (Ca), and lead (Pb). These are ionic compounds formed between metal cations (Ba\(^{2+}\), Ca\(^{2+}\), and Pb\(^{2+}\)) and the sulphate anion (SO\(_4^{2-}\)).

Review the common methods of preparation of metal sulphates

The common methods of preparation of metal sulphates are: 1. Precipitation: Mixing solutions of two soluble salts, one containing the desired cation and the other containing the sulphate anion. 2. Acid-base reactions: Reacting a metal oxide or hydroxide with a sulphuric acid. 3. Redox reactions: These reactions involve transfer of electrons and are less common in the preparation of sulphates.

Choose the appropriate method for the preparation of BaSO4, CaSO4, and PbSO4

All three sulphates can be prepared by precipitation, as they are all insoluble compounds. Let's write the precipitation reactions for each metal sulphate: 1. Barium sulphate (BaSO4): BaCl2 (aq) + Na2SO4 (aq) --> BaSO4 (s) + 2 NaCl (aq) 2. Calcium sulphate (CaSO4): CaCl2 (aq) + Na2SO4 (aq) --> CaSO4 (s) + 2 NaCl (aq) 3. Lead sulphate (PbSO4): Pb(NO3)2 (aq) + Na2SO4 (aq) --> PbSO4 (s) + 2 NaNO3 (aq)

Conclusion

The method employed for the preparation of sulphate of Ba, Ca, and Pb is precipitation. They can be prepared by mixing a solution containing the metal cation and another containing the sulphate anion, leading to the formation of the insoluble metal sulphate which precipitates out of the solution.

Unlock Step-by-Step Solutions & Ace Your Exams!

Full Textbook Solutions
Get detailed explanations and key concepts
Unlimited Al creation
Al flashcards, explanations, exams and more...
Ads-free access
To over 500 millions flashcards
Money-back guarantee
We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

Recommended explanations on Chemistry Textbooks

View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Which method is employed for the preparation of sulphate of \(\mathrm{Ba}\), \(\mathrm{Ca}\) and \(\mathrm{Pb}\) ?

Short Answer

Step by step solution

Identify the cations and anions in the given compounds

Review the common methods of preparation of metal sulphates

Choose the appropriate method for the preparation of BaSO4, CaSO4, and PbSO4

Conclusion

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Chemistry Textbooks

Making Measurements

Kinetics

The Earths Atmosphere

Chemistry Branches

Physical Chemistry

Chemical Reactions

Study anywhere. Anytime. Across all devices.