how much calcium would you ingest by drinking eight 8oz glas

how much calcium would you ingest by drinking eight 8oz glasses of unknown water sample?

concentration is 115.47 mg/ L

Solution

Okay, so we start by figuring out how many oz of water you\'re drinking total. 8 glasses * 8 oz/glass = 64 oz of water. Then, since we\'re given the hardness of the water in terms of liters, we have to calculate how many liters of water you\'re drinking. 64 oz * 30 mL/oz gives us 1920 mL, but that\'s still not liters. 1920 mL * 1 L/1000 mL gives us 1.92 L. Now that we have that, we can just multiply. 100 mg in one liter, and we have 1.92 liters, so there are going to be 100 * 1.92 or 192 mg of calcium in that amount of water (eight 8oz glasses).