The solubility decreases from calcium sulphate to barium sulphate. Justify
Answers
Answer:
Explanation:
(NCI04) Barium sulfate appears as white or yellowish odorless powder or small crystals. Mp: 1580°C (with decomposition). Density: 4.25 -4.5 g cm-3. Insoluble in water, dilute acids, alcohol. Soluble in hot concentrated sulfuric acid. Used as a weighting mud in oil-drilling, in paints, paper coatings, linoleum, textiles, rubber.
With calcium ions no precipitate is formed (difference from barium and strontium). 6- Potassium chromate solution: Of the alkaline earth chromates, barium chromate is the least soluble and calcium chromate is the most soluble.
Because of the shift toward the reactant side, the solubility of the slightly soluble calcium sulfate is reduced even further. Temperature changes affect the solubility of solids, liquids and gases differently. However, those effects are finitely determined only for solids and gases.
The solubilities of the hydroxides in water follow the order: Be(OH)2 < Mg(OH)2 < Ca(OH)2 < Sr(OH)2 < Ba(OH)2. Metal Oxide Basicity Group II metal oxides become more basic as you go down the column.