1.

(94) The number of moles of Kl required toproduce 0.4 mole K, Hg 1, is11 2) 3) 16 4) 16

Answer»

The required equation is HgCl2+4KI>>2KCl+K2HgI4. According tostoichiometric calculations:- 4 moles of KI gives 1 mole of K₂HgI₄. THEREFORE 0.4moles of K₂HgI₄ requires----- ? 0.4 moles x 4 moles/1 mole=1.6 moles therefore1.6 moles of KI is required to produce 0.4 moles of K₂HgI₄.



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