Determine the formula mass of NH3. Round your answer to 2 decimal places.

17.03g/mol

Explanation:

The formula mass is the molar mass of a given compound.

 Atomic mass of N = 14.0067g/mol

                            H  = 1.0079g/mol

Now;

  Insert the parameters and solve;

   Formula mass = 14.0067 + 3( 1.0079)  = 17.03g/mol

The formula mass of the compound is 17.03g/mol

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1.43 x 10^-11 j the guy commented the awnser just making sure u see it .