3. Chemical Reactions
Mass Percent
19PRACTICE PROBLEM
Calcium ions are found in hard water. The recommended minimum ingestion of calcium by the U.S. Food and Drug Administration (FDA) is 1.3 g per day. If a sample of hardened water is 0.030% calcium by mass, what is the minimum volume in liters of hardened water to be consumed by a person to exceed the FDA recommendation? (assume the density of hardened water = 1.0 g/mL)
Calcium ions are found in hard water. The recommended minimum ingestion of calcium by the U.S. Food and Drug Administration (FDA) is 1.3 g per day. If a sample of hardened water is 0.030% calcium by mass, what is the minimum volume in liters of hardened water to be consumed by a person to exceed the FDA recommendation? (assume the density of hardened water = 1.0 g/mL)