Question

Given:

2KI → 2K + I2

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

Since 2 moles of KI produce 1 mole of I2, then 7.0 moles of KI will produce 7.0/2 moles of I2. In other words, 3.5 moles of I2 will be produced