Problem: Aspirin has the following mass percent composition: C 60.00%, H 4.48%, and O 35.52%. Its empirical formula is:

FREE Expert Solution
90% (324 ratings)
FREE Expert Solution

We’re being asked to determine the empirical formula of aspirin given the mass percent of C, H, and O.


Recall that the empirical formula is the simplest whole-number ratio formula of a compound


For this problem, we need to do the following steps:

Step 1: Calculate the mass and moles of C, H, and O in the compound.

Step 2: Determine the lowest whole number ratio of C, H, and O to get the empirical formula.


90% (324 ratings)
Problem Details

Aspirin has the following mass percent composition: C 60.00%, H 4.48%, and O 35.52%. Its empirical formula is:

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Empirical Formula concept. You can view video lessons to learn Empirical Formula Or if you need more Empirical Formula practice, you can also practice Empirical Formula practice problems .

What is the difficulty of this problem?

Our tutors rated the difficulty of Aspirin has the following mass percent composition: C 60.00%... as medium difficulty.

How long does this problem take to solve?

Our expert Chemistry tutor, Sabrina took 5 minutes to solve this problem. You can follow their steps in the video explanation above.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Marin's class at UCF.