(ii) Potassium ions, K^+, are formed from potassium atoms. Describe how a potassium atom forms a potassium ion. __ (b) Potassium chloride can be made by reacting potassium with chlorine. The equation for the reaction is 2K+Cl_(2)arrow 2KCl Calculate the mass of potassium needed to make 1.492 g of potassium chloride. (Relative formula mass of potassium chloride=74.6) (Relative atomic mass of potassium=39.1) Show your working.

## Step 1: The burning question here is the amount of potassium required to produce a specified quantity of potassium chloride. We have the equation: which reveals that 2 moles of potassium reacts to give 2 moles of potassium chloride. Hence the reaction is in a 1:1 molar ratio. One mole of potassium corresponds to one mole of potassium chloride.### The balanced relationship in the chemical reaction between Potassium (K) and Potassium chloride (KCl) can be represented as: ### ## Step 2:First, we need to find the number of moles of potassium chloride produced using the given mass of potassium chloride and its relative formula mass.### So, the number of moles of Potassium Chloride (KCl) should be calculated by:### ## Step 3:By the definition of molar ratio, 1 mole of potassium corresponds to 1 mole of potassium chloride, we ascertain that the amount of potassium (in terms of moles) needed will be equal to the amount of potassium chloride obtained (also in terms of moles).## Step 4:Next, we know that the atomic mass of potassium is 39.1. Hence to get the actual weight of potassium needed, we need to multiply the number of moles with the atomic mass of potassium.### To get the mass of Potassium, the relation between mass, moles and molar mass, i.e., is applied.