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Why do you use hydrochloric acid to separate calcium carbonate from sand but not sulphuric acid?
Hydrochloric acid reacts with calcium carbonate to form calcium chloride, carbon dioxide gas, and water, which helps dissolve the calcium carbonate. On the other hand, sulfuric acid does not react with calcium carbonate as effectively as hydrochloric acid, making it less efficient for separating calcium carbonate from sand.
Why Iron chloride acidic while sodium carbonate basic explain?
Iron chloride is acidic because some of the water molecules in its hydration shell deprotonate. Sodium carbonate is basic because its the salt of a weak acid. Thus, some carbonate ions take protons from water, creating basic hydroxide ions.
Why you use calcium carbonate when you isolate casein from milk?
Calcium carbonate is used when isolating casein from milk because it acts as a source of calcium ions, which help to precipitate casein from the milk solution. When added to the milk, calcium carbonate reacts with the acidity, leading to a decrease in pH that promotes the coagulation of casein. This process allows for the effective separation of casein from whey and other components in milk. Additionally, calcium carbonate is non-toxic and easily manageable, making it a suitable choice for this purpose.
What is the best way of making zinc carbonate?
One way to make zinc carbonate is by reacting a soluble zinc salt (such as zinc sulfate or zinc chloride) with a carbonate salt (such as sodium carbonate or sodium bicarbonate) in a solution. The zinc carbonate will precipitate out of the solution as a solid, which can then be filtered and dried.
What are the ingredients of making chalks?
Chalk is primarly calcium carbonate and/or magnesium carbonate.
Why do we add potassium carbonate during caffeine extraction?
Potassium carbonate is added during caffeine extraction to increase the pH of the solution, making caffeine more soluble in the organic solvent. This helps in separating caffeine from the aqueous solution containing impurities. Additionally, potassium carbonate helps to neutralize any acidic impurities present in the solution.
What is the name of the chemical reaction making calcium carbonate?
calcification
What is the pH of sodium carbonate solutions?
The pH of sodium carbonate solutions is typically around 11-12, making it basic or alkaline.
What is procedure that involves making measurements and observations?
This procedure is called a experiment.
Can magnesium carbonate be made as a precipitate by reacting together magnesium sulfate and calcium carbonate?
The proposed method of making magnesium carbonate can not be accomplished from solutions in water, because the solubility of calcium carbonate in water is so low that it can not furnish a sufficient concentration of carbonate ions to exceed the solubility product constant for magnesium carbonate.
What is the elemental making of chalk?
Chalk is a form of calcium carbonate - CaCO3.
Procedure in making up beds and cots?
what is the procedure for setting up cotbed
