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Sodium sulfate is added in the preparation of para bromoacetanilide to facilitate the separation of the product from the reaction mixture. It helps in forming a complex with excess bromine and bromine water, allowing easy removal of impurities. Sodium sulfate is also used to dry the organic layer during the extraction process.
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Copper sulphate add to sodium hydroxide result colour?
When copper sulfate is added to sodium hydroxide, a blue precipitate of copper hydroxide is formed. The color change observed is from the initial blue color of copper sulfate to the blue precipitate of copper hydroxide.
Why add nitric acid and sulphuric acid to acetanilide?
Nitric acid and sulfuric acid are added to acetanilide to facilitate the nitration reaction. Nitric acid provides the nitronium ion needed for nitration, while sulfuric acid acts as a catalyst and helps in protonating the acetanilide molecule. This process allows for the substitution of a nitro group onto the acetanilide molecule.
What happens when sodium hydroxide is added to copper sulphate solution?
When sodium hydroxide is added to copper sulfate solution, a blue precipitate of copper hydroxide forms. This reaction can be summarized by the equation: CuSO4 (aq) + 2 NaOH (aq) → Cu(OH)2 (s) + Na2SO4 (aq).
What color is pasta when copper sulphate and sodium chloride is mixed with it?
The copper sulphate will likely give the pasta a blue or green hue, while the sodium chloride (salt) will not significantly alter its color. The overall color may appear bluish-green due to the copper sulphate.
What solid forms when sulphate solution is added to sodium hydroxide solution?
When a sulfate solution reacts with sodium hydroxide solution, a white precipitate of insoluble sodium sulfate is formed. This reaction is a double displacement reaction where the cations and anions of the two compounds switch partners to form the new compound.
What is observed when sodium sulphate solution is added to barium chloride?
A white precipitate of barium sulphate is formed when sodium sulphate solution is added to barium chloride solution. This is due to the formation of an insoluble salt, barium sulphate, which appears as a white solid in the solution.
Why does strontium sulfate becomes less soluble in an aqueous solution when sodium sulfate is added?
Sodium sulphate increases the concentration of sulphate ions. So strontium sulphate solubility decreases.
When sulphuric acid is added to sodium bicarbonate why does the colour change?
this makes sodium sulphate and CO2
What is added to sodium hydroxide that will get sodium sulphate and water?
You would need to add Sulphuric acid to make Sodium Sulphate + Water :)
What is the purpose of adding sodium acetate to the reaction mixture in preparation of acetanilide?
In the synthesis of acetanilide the hydrochloride salt of aniline is used in order to increase the solubility in water. The sodium acetate acts as a base and reacts with the HCl to produce acetic acid. Once the acetanilide product is no longer a hydrochloride salt, its solubility in water is decreased and it crystalises out. The main byproducts are sodium chloride and acetic acid which remain soluble in the water and are removed when the crude product is filtered off.
What do you observe when red litmus is added to a solution of sodium sulphate?
Sodium sulfate solution is neutral; the red litmus is purple.
Copper sulphate add to sodium hydroxide result colour?
When copper sulfate is added to sodium hydroxide, a blue precipitate of copper hydroxide is formed. The color change observed is from the initial blue color of copper sulfate to the blue precipitate of copper hydroxide.
Why excess barium chloride is added to the filtrate in the preparation of a dry sample of barium sulphate?
Barium chloride in excess is added to be sure that the reaction is complete.
What is the work of NaCl in soap preparation?
Sodium chloride is added to precipitate the soap.
What happen when you added Sodiun hypo chloride in Sodium Sulphate solution?
I think sodium Hypo chlore is act as a color removal reagent. it is used to develop the sulphate color to white. If any other reasones are there please inform me.
What is the colour change when sodium hydroxide is added to iron II sulphate?
dark green (but orange - brown if left standing)
What happens when 5 drops of sodium carbonate solution is added to 1cm of copper sulphate solution?
it will clean 6 pennies to a fair but noticeable shine
