Question

What is the formula of Barium hydroxide?

Answer 1

Hint: Barium hydroxide is utilised as a precursor to various barium compounds in industry. It's used to dehydrate and eliminate sulphate from a variety of goods. This application takes use of barium sulphate’s poor solubility. This industrial use may also be used in the lab.

Complete answer:
This explains the Barium Hydroxide formula, commonly known as Barium hydroxide formula or Caustic baryta formula. One atom of barium, two atoms of hydrogen, and two atoms of oxygen make up this chemical molecule. $ Ba{(OH)_2} $ is the chemical or molecular formula for Barium Hydroxide.
It comes in the form of a white powder with no odour. Barium Oxide may be made by dissolving it with water. This chemical compound is water soluble in a modest amount.
Valency of Barium = 2
Valency of OH = 1
Formula = $ Ba{(OH)_2} $
By dissolving barium oxide (BaO) in water, barium hydroxide can be made:
 $ BaO{\text{ }} + {\text{ }}9{\text{ }}{H_2}O{\text{ }} \to {\text{ }}Ba{\left( {OH} \right)_2}\cdot8{H_2}O $
When heated in air, it crystallises as an octahydrate, which then changes to a monohydrate. The monohydrate will produce BaO and water at 100 °C in a vacuum. A layered structure is adopted by the monohydrate. The antiprismatic geometry of the $ B{a^{2 + }} $ centres is square. Two water ligands and six hydroxide ligands are attached to each $ B{a^{2 + }} $ centre, and they are doubly and triply bridging to nearby $ B{a^{2 + }} $ centre sites. Individual $ B{a^{2 + }} $ centres are eight coordinates in the octahydrate, however they do not share ligands.

Note:
When heated to 800 degrees Celsius, barium hydroxide decomposes into barium oxide. Barium carbonate is formed when carbon dioxide is reacted with it. Because its aqueous solution is extremely alkaline, it undergoes acid neutralisation reactions. With sulfuric and phosphoric acids, it produces barium sulphate and barium phosphate, respectively. Barium sulphide is formed when hydrogen sulphide reacts with it. When a barium hydroxide aqueous solution is combined with numerous solutions of other metal salts, a twofold replacement reaction can result in the precipitation of multiple insoluble or less soluble barium salts. Barium hydroxide reactions with ammonium salts are very endothermic.