contestada

Ibuprofen is a common pain reliever and anti-inflammatory. Its formula is C13H18O2. What percent by mass of ibuprofen is the carbon? (A calculator can be used) A) 75.68 % B) 33.33% C) 13.00% D) 39.39%

Respuesta :

linahamdan1980

Answer:

Explanation:

%Carbon =  mass of carbon / mas of C13H18O2) X100%

             =      13X12/ (13X12+18+2X16)X100%

           =    156/206) X100%= 75.7%

Otras preguntas