To find the molar mass of the given compound find the sum of the molar masses of each element multiplied by their subscripts:
C-12g/mol
H-1g/mol
N-14g/mol
O-16g/mol
[tex]12g/mol\cdot8+1g/mol\cdot9+14g/mol\cdot1+16g/mol\cdot2=151g/mol[/tex]The molar mass of C8H9NO2 is 151g/mol
