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08-08-2016
Chemistry

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in the following reaction, how many moles of iodine is needed to obtain 0.3 mole of the product? 2 cr 3 i2= 2 cri3

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Willchemistry Willchemistry

08-08-2016

2 Cr + 3 I₂= 2 CrI₃

mole ratio:

3 moles I₂ ---------------- 2 moles CrI₃
( moles I₂) --------------- 0.3 moles CrI₃

moles iodine ( I₂ ) = 0.3 x 3 / 2

moles iodine = 0.9 / 2

= 0.45 moles of iodine

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