
Concept explainers
Interpretation:
The amount of iodine gas formed when
Concept Introduction:
- A
chemical reaction is expressed as a chemical equation having reactants and products on the left and right side of the reaction arrow respectively.
- The coefficient of a balanced chemical equation, i.e., the stoichiometry gives the amount of reactants and products involved in the reaction.
- Chemical equations can therefore be used to determine the amount of products formed from a known quantity of reactants.

Answer to Problem 25A
Mass of I2=
Explanation of Solution
The given reaction is:
The balanced equation is:
Step 1: Calculate the moles of Cl2present:
Mass of Cl2 present =
Molar mass of Cl2 = 71 g/mol
Step 2: Calculate the moles of I2 formed:
Based on the reaction stoichiometry:
1 mole of Cl2 forms 1 mole of I2.
Therefore, 63.38 moles of Cl2will yield 63.38 moles of I2.
Step 3: Calculate the mass of I2 formed:
Moles of I2 formed= 63.38 mol
Molecular weight of I2 = 253.8 g/mol
Therefore, the mass of I2 formed is around
Chapter 9 Solutions
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