Answer
The molar mass of ibuprofen is equal to 206.2 g/mole.
Work Step by Step
Molar Mass ($C_{13}H_{18}O_2$):
Molar mass :
$C: 12.01g * 13= 156.1g $
$H: 1.008g * 18= 18.14g $
$O: 16.00g * 2= 32.00g $
156.1g + 18.14g + 32.00g = 206.2 g/mole
