Question

2KI - 2K + 12

Calculate the number of moles of iodine produced in the decomposition of 7.0 moles of potassium iodide (KI). Express your
answer to the correct number of significant figures

Answer 1

The number of moles of iodine (I) produced is 3.5

Step-by-step explanation:

edmentum :)

Answer 2

The answer to your question is 3.5 moles of I₂

Step-by-step explanation:

Data

moles of I₂ = ?

moles of KI = 7

Balanced chemical reaction

2KI ⇒ 2K + I₂

Process

To solve this problem use proportions and cross multiplication. Use the coefficients of the balanced chemical reaction for this proportion.

2 moles of KI --------------------- 1 mol of I₂

7 moles of KI -------------------- x

x = (7 x 1) / 2

-Simplifying

x = 7/2

-Result

x = 3.5 moles of I₂