Pyramids were built in Ancient Egypt as tombs, or burial places, for Egyptian pharaohs, or kings. They believed that the pyramids made you immortal. The Ancient Egyptians believed in an afterlife, so it was very important to them to protect the bodies of their pharaohs.
CaCO3, or calcium carbonate, has a molar mass of 100.09 grams per mole. This means there are roughly 566 grams of CaCO3.
= 182 mg/L as CaCO3. Online Calcium Carbonate CaCO3, Water Hardness Calculation. This calculator is used to find Hardness of salts in a water. Hardness is the measure of dissolved salts in alkaline water.o measure hardness, a water operator needs to know how many mL of ethylenediaminetetraacetic acid (EDTA) it would take to neutralize the salts. This allows you to determine how much hardness was neutralized. Hardness is also measured in mg/L of equivalent calcium carbonate.