If two moles of

chlorine gas reacts

with potassium iodide,

how many grams of

potassium chloride are

produced?

298.2 g of KCl

Explanation:

The balance chemical equation for given single replacement reaction is as follow;

2 KI + Cl₂ → 2 KCl + I₂

Step 1: Calculate moles of KI produced:

According to balance equation,

1 mole of Cl₂ produced = 2 moles of KCl

So,

2 moles of HCl will produce = X moles of KCl

Solving for X,

X = 2 mol * 2 mol / 1 mol

X = 4 moles of KCl

Step 2: Calculate Mass of KCl as;

Mass = Moles * M. Mass

Mass = 4 mol * 74.55 g/mol

Mass = 298.2 g of KCl