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.
(or 25 mg/l CaCO3). For alkalinity below this value, it is recommended to use a low alkalinity method with 0.02 eq/l titrant and 200 ml for sample volume, using the calculation above. Notes 1) The results are normally expressed in mmoles/l (or meq/l) of alkalinity. 1 ml of 0.1 eq/l of strong acid represents 0.1 meq or mmol of alkalinity. 2) Depending on the country,many other units can be used for the results-mmol/l CaCO 3 (= meq/l * 0.5) (CO 3-- has 2 alkalinity functions per molecule)-mg/l CaCO 3 (= meq/l * 50) (MW of CaCO