Advertisements
Advertisements
Question
In the Solvay process, can we obtain sodium carbonate directly by treating the solution containing (NH4)2CO3 with sodium chloride? Explain.
Solution
No. In Solvay process, ammonium hydrogen carbonate is prepared from ammonium carbonate, which then reacts with sodium chloride to form sodium hydrogen carbonate. Due to low solubility of NaHCO3, it gets precipitated and decomposes on heating to give Na2CO3.
We cannot obtain sodium carbonate directly by treating the solution containing (NH4)2CO3 with sodium chloride as both the products formed on reaction, i.e., Na2CO3 and NH4C1 are soluble and the equilibrium will not shift in forward direction.
\[\ce{(NH4)2CO3 + 2NaCl ⇌ Na2CO3 + 2NH4Cl}\]
APPEARS IN
RELATED QUESTIONS
Find the oxidation state of sodium in Na2O2.
Starting with sodium chloride how would you proceed to prepare sodium metal.
Describe two important uses of each of the following caustic soda.
Describe two important uses of the following sodium carbonate.
What happens when sodium metal is heated in the free supply of air?
Amphoteric hydroxides react with both alkalies and acids. Which of the following Group 2 metal hydroxides is soluble in sodium hydroxide?
The formula of soda ash is ______.
When Zeolite, which is hydrated sodium aluminium silicate is treated with hard water, the sodium ions are exchanged with which of the following ion(s)?
(i) H+ ions
(ii) Mg2+ ions
(iii) Ca2+ ions
(iv) \[\ce{SO^{2-}4}\] ions
Complete the following reactions.
\[\ce{O^{2-}2 + H2O ->}\]
Match the compounds given in Column I with their uses mentioned in Column II.
| Column I | Column II |
| (i) CaCO3 | (a) Dentistry, ornamental work |
| (ii) Ca(OH)2 | (b) Manufacture of sodium carbonate from caustic soda |
| (iii) CaO | (c) Most negative E value among alkali O metals. |
| (iv) CaSO4 | (c) Manufacture of high-quality paper |
| (d) Used in white washing |
