Ibuprofen, the anti-inflammatory ingredient in Advil, has the formula C13 H18 O2. What is the molar mass of ibuprofen? How many molecules are in 0.200 mole of ibuprofen?

1 Answer
Feb 24, 2016

Answer:

#206g//mol#

#1.2046xx10^23# molecules

Explanation:

To find the molar mass of the compound, simply add the molar masses of all the individual atoms that make up 1 molecule of the compound.

#therefore M_r=(13xx12)+(18xx1)+(2xx16)#

#=206g//mol#.

#1# mole contains #6.023xx10^23# particles.

Hence by ratio and proportion, #0.2mol# contains #1.2046xx10^23# molecules.