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.
Also, How many grams of copper (II) fluoride are needed to make 6.7 liters of a 1.2M solution.Follow.est Answer: 660g Ca3(PO4)2 / 310.1692 g/mol Ca3(PO4)2 =2.13 mol Ca3(PO4)2 2.13 mol Ca3(PO4)2/ 2.5L= .852 M Ca3(PO4)2. for the additional question, 6.7L * 1.2 M= 8.04 mol CuF2 8.04 mol CuF2 * 101.54 g/mol CuF2= 816.40 g CuF2. Source(s):