8. Water and Minerals / Major Mineral: Sodium and Potassium / 문제 3
문제 3
A salt substitute contains 60% potassium chloride (KCl) by weight. One serving is 5.0 g of the salt substitute. Approximately how many milligrams of elemental potassium (K) are supplied in that one 5.0 g serving? (Atomic weights: K = 39.10, Cl = 35.45; molecular weight KCl ≈ 74.55.)