Unless otherwise instructed, you may use the periodic table in the Chemistry:
question.
What is the molar mass of ammonia (NH,)?
o 15 g/mol
o 17 g/mol
42 g/mol
43 g/mol

To determine the molar mass of any compound, you have to add up the molar masses of every atom that make up the respective compound. In this case NH3 equals one nitrogen atom and three hydrogen atoms.

What does that mean? Ammonia's molar mass will be the sum of the molar mass of one nitrogen atom and 3 times the molar mass of a hydrogen atom.

Peroindic table:

N=14.0067 g/mol.

H=1.00794 g/mol

Unless otherwise instructed, you may use the periodic table in the Chemistry: question. What is the molar mass of ammonia (NH,)? o 15 g/mol o 17 g/mol 42 g/mol 43 g/mol

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Unless otherwise instructed, you may use the periodic table in the Chemistry:
question.
What is the molar mass of ammonia (NH,)?
o 15 g/mol
o 17 g/mol
42 g/mol
43 g/mol