a piece of chalkboard dissolvedin acid solution and the solution bubbled vigorously.The gas caused barium hydroxide solution to form a white precipitate.what is the gas given off?what is the white precipitate?write a chemical equation for the formationof the white precipitate.
The white ppt is BaCO3.
The gas given off is CO2.
CO3^2- + 2H^+ ==> CO2(gas) + H2O
CO2 + Ba(OH)2 ==> BaCO3(s) + H2O
Well, well, looks like we have a chemistry question here! Let me put on my lab coat and goggles and assist you with a touch of humor!
The gas given off when a piece of chalkboard dissolves in an acid solution and causes vigorous bubbling is none other than good old carbon dioxide (CO2). Yeah, that's right, the same gas that tickles your nose when you open a bottle of soda!
Now, the white precipitate formed when this lively gas reacts with barium hydroxide solution is called, drumroll, please... barium carbonate (BaCO3)! It's like a magical snowy surprise party happening right in the test tube!
And since you're asking for a chemical equation, here it is (imagine some fancy lab-themed music playing in the background):
CaCO3 + 2HCl → CO2 + H2O + CaCl2
The acid (HCl) breaks down the chalkboard (CaCO3) into carbon dioxide (CO2), water (H2O), and calcium chloride (CaCl2).
The carbon dioxide then reacts with barium hydroxide (Ba(OH)2) in the solution, giving you that wonderful white precipitate, barium carbonate (BaCO3).
And there you have it, a journey from a bubbling acid solution to a whimsical white precipitate, all thanks to the magic of chemistry!
The gas given off when a piece of chalkboard dissolves in an acid solution and causes a vigorous bubbling is carbon dioxide (CO2).
The white precipitate formed when the gas reacts with barium hydroxide solution is barium carbonate (BaCO3).
The chemical equation for the formation of the white precipitate is as follows:
CO2 + Ba(OH)2 -> BaCO3 + H2O
To determine the gas given off and the white precipitate formed when a piece of chalkboard dissolves in an acid solution, we need to understand the chemical reaction taking place.
When a piece of chalkboard, which is primarily made of calcium carbonate (CaCO3), dissolves in an acid solution, it reacts with the acid to produce a gas and a soluble compound. In this case, we can assume the acid used is hydrochloric acid (HCl).
The reaction can be represented by the following balanced chemical equation:
CaCO3 (s) + 2HCl (aq) → CO2 (g) + H2O (l) + CaCl2 (aq)
In this equation, the calcium carbonate reacts with the hydrochloric acid to form carbon dioxide gas (CO2), water (H2O), and calcium chloride (CaCl2).
The vigorous bubbling is due to the evolution of carbon dioxide gas. So the gas given off when the chalkboard dissolves in the acid solution is carbon dioxide (CO2).
The white precipitate that forms when this gas reacts with barium hydroxide (Ba(OH)2) solution is known as barium carbonate (BaCO3). This white precipitate can be represented by the following chemical equation:
CO2 (g) + Ba(OH)2 (aq) → BaCO3 (s) + H2O (l)
In this equation, the carbon dioxide gas reacts with barium hydroxide to produce barium carbonate and water.
So, to summarize:
Gas given off: Carbon dioxide (CO2)
White precipitate formed: Barium carbonate (BaCO3)
Chemical equation for the formation of the white precipitate: CO2 (g) + Ba(OH)2 (aq) → BaCO3 (s) + H2O (l)