To calculate the amount of calcium obtained from drinking 3 bottles of water in one day, we need to convert the concentration from parts per million (ppm) to milligrams (mg).
1 ppm = 1 mg/L
Since the density of water is the same as pure water, the volume of 1 bottle is equal to 1 pint, which is approximately 473.18 mL.
Using the given concentration of calcium as 28 ppm, we can calculate the amount of calcium in 1 bottle of water:
Calcium in 1 bottle = 28 mg/L * 473.18 mL
Calcium in 1 bottle = 13223.04 mg
To find the amount of calcium obtained from drinking 3 bottles of water, we multiply the calcium content per bottle by 3:
Calcium intake in one day = 13223.04 mg/bottle * 3 bottles
Calcium intake in one day = 39669.12 mg
Therefore, by drinking 3 bottles of water in one day, you would obtain 39669.12 milligrams of calcium.