a binary compound contains chromium and iodine and has a mass of 8.301 grams. if the compound contains 12.05% chromum, calculate the ,ass of odine used from the compound and its emperical formula.
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total mass 8.301
If the compound contains 12.05% Chromium
That means weight of chromium in the compound = 12.5/100 x 8.301
= 1 gm
So it means the mass of iodine is 8.301gms - 1gm = 7.301gms
2) Determine moles:
Cr ⇒ 1 g / 51.996g/mol = 0.019 mol
Iodine I⇒ 7.301/126.904 g/mol = 0.0575 mol
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