# A Question in Physical Chemistry !

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Equal weights of Mercury and Iodine are allowed to react completely to form a mixture of Mercurous and mercuric iodide leaving none of the reactants. calculate the ratio by weight of Hg2I2 and HgI2 formed.(Hg=200 , I=127)

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Lets take x gm of Hg and x gm of I2 present in the initial mixture

Hg + I2 → HgI2

2Hg + I2 → Hg2I2

Actually mercuric iodide (HgI2) cant be made by reacting iodine with mercury. Pure Mercurous iodide actually forms when we add mercury to iodine . So the ratio is 1 : 0