Zinc reacts with iodine in a synthesis reaction. Using a balanced chemical equation for the reaction, determine the percent yiel
2 answers:
Answer:
84.48%
Explanation:
Let's consider the following synthesis reaction.
Zn + I₂ → ZnI₂
We can establish the following relations:
- The molar mass of Zn is 65.38 g/mol.
- The molar ratio of Zn to ZnI₂ is 1:1.
- The molar mass of ZnI₂ is 319.22 g/mol.
The mass of ZnI₂ (theoretical yield) to be obtained from 125.0 g of Zn is:
The real yield of ZnI₂ is 515.6 g. The percent yield is:
(515.6 g/610.3 g) × 100% = 84.48%
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