formula mass
Pronunciation
Noun
B2 Upper-intermediate
Quick answer
The sum of the atomic masses of all the atoms shown in a compound's chemical formula.
Synonyms and antonyms
Synonyms
relative formula mass
Test yourself
Which word fits the gap? "To find the _____ of water, you add two hydrogen masses to one oxygen mass."
Answer: formula mass
In your own words, what does "formula mass" mean?
The sum of the atomic masses of all the atoms shown in a compound's chemical formula.
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