Answer:
15.2 g of KCl
First option
Explanation:
Decomposition reaction is: 2KClO₃ → 2KCl + 3O₂
We need to convert the mass of chlorate to moles:
25 g / 122.55 g/mol = 0.204 moles
Ratio is 2:2.
Therefore 0.204 moles of chlorate will produce the same amount of chloride. We finally produce 0.204 of KCl
We convert the moles to mass → 0.204 mol . 74.55 g / 1 mol = 15.2 g of KCl
