Asperin is 60.00% carbon, 4.48% hydrogen and 35.53% oxygen. What is the emperical formula for aspirin?
Answer:
We consider 100 g of this sample. There are
60.00 g of C : atomic weight = 12.011 g/mol
60.00 / 12.011 = 4.995 moles C
4.48 g of H : atomic mass = 1.00794 g/mol
4.48 g / 1.00794 = 4.445 moles H
35.53 g of O : atomic mass = 15.9994 g/mol
35.53 g / 15.9994 = 2.221 moles O
We divide each number for the smallest
4.995 / 2.221 = 2.25 C
4.445 / 2.221 = 2.00 H
2.221 / 2.221 = 1 O
The empirical formula is C2H2O
Almost there Dr. A.
2.25 C, 2H, 1O now find a multiplier taht will mke these whole numbers (what about 4)
C9H8O4 is the empirical formula (its also the actual formula)
Acetylsalicylic acid
The answers post by the user, for information only, FunQA.com does not guarantee the right.
More Questions and Answers: