Neco 2023 Chemistry Question 1
Practice objective / multiple choice question 1 from the 2023 Neco Chemistry examination.
A 25.0 mL sample of an aqueous solution of chlorine gas (Cl_2) is added to excess aqueous KI solution. The liberated iodine vapor is collected over water at 25°C and a total pressure of 750 mmHg. The volume of iodine vapor collected is 31.5 mL. The vapor pressure of water at 25°C is 23.8 mmHg. Assuming ideal gas behaviour and that the reaction proceeds according to \(\mathrm{Cl_2 + 2 KI \rightarrow 2 KCl + I_2}\), determine the molarity of the original chlorine solution (mol\,L^{-1}).
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About This Question
This is Neco 2023 Chemistry Question 1. It is one of the objective questions from the 2023 Neco Chemistry examination.
Difficulty level: Hard .
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