What is the difference between formula mass and atomic mass?
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- Thread Starter
- 26-10-2017 20:21
- 26-10-2017 20:29
The atomic mass of an element is the sum of the number of protons and electrons that there are one atom of an element. Formula mass refers to the combined mass of one molecule of a substance. For example Oxygen - atomic mass = 16, Formula mass = 32 (one molecule of oxygen is O2, therefore 2x16).