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Aqueous Potassium Iodate (KIO3) and Potassium Iodide (KI) React in the Presence

Question 20

Multiple Choice

Aqueous potassium iodate (KIO3) and potassium iodide (KI) react in the presence of dilute hydrochloric acid, as shown below.
KIO3(aq) + 5KI(aq) + 6HCl(aq) \rightarrow 3I2(aq) + 6KCl(aq) + 3H2O(l)
What mass of iodine (I2) is formed when 50.0 mL of 0.020 M KIO3 solution reacts with an excess of KI and HCl?


A) 0.13 g I2
B) 0.25 g I2
C) 0.38 g I2
D) 0.76 g I2
E) None of these answers is correct.

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