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Is the dissolution of calcium iodate in water exothermic or endothermic?

Is the dissolution of calcium iodate in water exothermic or endothermic?

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Answer #1

Ca(IO3)2 + H2O --> Ca(OH)2(s) + HI(aq) + O2(g)

Calcium iodates are inorganic compound composed of calcium and iodate anion. Two forms are known, anhydrous Ca(IO3)2 and the hexahydrate Ca(IO3)2(H2O). Both are colourless salts that occur naturally as the minerals called lautarite and bruggenite, respectively. A third mineral form of calcium iodate is dietzeite, a salt containing chromate with the formula Ca2(IO3)2CrO4.

this is purely exothermic reaction. u can see the heat after puting water in lime stone (Ca(IO3)2.

Formation of HI is also an exothermic process because HI is highly acidic

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