cpratt367 cpratt367

09-09-2020
Chemistry

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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%

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linahamdan1980 linahamdan1980

10-09-2020

Answer:

Explanation:

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

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

= 156/206) X100%= 75.7%

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