Final answer:
To find the mass of KCl produced from 9.50 g of K, we can use stoichiometry and molar mass calculations.
Step-by-step explanation:
To find the mass of KCl produced, we need to use the concept of stoichiometry. From the balanced equation, we can see that 2 moles of KCl are produced for every 2 moles of K. This means that the mole ratio of K to KCl is 1:1. We can use the molar mass of KCl (74.55 g/mol) to convert the moles of K to grams of KCl.
Given that we have 9.50 g of K, we can calculate:
(9.50 g K) x (1 mol K/39.10 g K) x (74.55 g KCl/1 mol KCl) = 18.1 g KCl
Therefore, the correct answer is 18.1 g KCl.