Question

How many grams of potassium chloride are produced from 5 mol of potassium and excess chlorine?

Answer 1

Answer: 372.5 g KCl

Explanation: balanced equation

2K + Cl2-------> 2KCl

2 mol K produce 2 mol Kcl

5 mol K produce = 5x2/2=5 mol Kcl

Then moles = mass/molar mass

Mass = moles x molar mass= 74.5x5=372.5 g Kcl