BRIANLIEST Use the mass to calculate the number of moles in a 347.89 g samples of ammonium

20.46 moles

Explanation:

1 mole of NH3 contains 17gm of NH3

so 347.89 gm of ammonia is in,

347.89/17 moles

=20.46 moles

NOTE. There should be ammonia instead of ammonium in question because ammonium is an ion not a compound.

it’s previous models   because when i picked that son of a gun’s answer it was wrong look for previous models because they might make it a different letter