Answer:
molar mass: 587.1947
Step-by-step explanation:
Element Symbol Atomic weight Atoms Mass percent
Mercury Hg 200.59 2 68.3215
Nitrogen N 14.0067 3 7.1561
Oxygen O 15.9994 9 24.5225
The molar mass of Hg2(NO3)3 is 587.1947 g/mol
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