1.65 grams Zinc excess Iodine. Calculate moles of Zinc used and mass of Zinc Iodide formed
Answers
Explanation:
that are consumed to produce zinc iodide?
The balanced chemical equation for this synthesis reaction between zinc and iodine is:
Zn + I2→ ZnI2
To determine the mass of zinc consumed (reacted), we should be aware of the mass of iodine that was consumed (reacted), or the mass of zinc iodide that was produced.
For example:
How many grams of Zn must be consumed to react with 12.52g I2 to produce ZnCl2?
Determine moles I2 by dividing the given mass by its molar mass.
Calculate moles Zn by multiplying moles I2 by the mole ratio between I2 and Zn in the balanced equation, with Zn in the numerator.
Determine the mass of the Zn required to react with 12.5 g I2 by multiplying the moles Zn by it molar mass.
12.5g I2 × 1mol I2/253.808g I2 ×1mol Zn/1mol I2 × 65.38g Zn/1mol Zn=3.22 g Zn
3.22g Zn are consumed when reacted with 12.5g I2
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