Used where the weight of each chemical is used and not the volume eg. Consider an example of glucose. Glucose molecular formula is C 6 H 12 O 6.
Used where the weight of each chemical is used and not the volume eg.
Note here that it supposes that C exists at free atoms like He. The everyday definition of weight is a measure of how heavy a person or object it. Glucose molecular formula is C 6 H 12 O 6. Of an ionic compound that does not form molecules the sum of the atomic weights of the atoms of the formula unit.