Problem: A chromium oxide compound contains 104.0 grams of chromium and 48.0 grams of oxygen. What is the most likely empirical formula of this compound?

FREE Expert Solution

We are being asked to determine the empirical formula of a chromium oxide compound containing 104.0 grams of chromium and 48.0 grams of oxygen.


    This means we need to do the following steps:


Step 1: Calculate the moles of Cr and O in the compound.

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



Step 1: The compound is composed of Cr and O and we’re given the mass of Cr (104.0 g  Cr) and O (48.0 g O)

Since we have the mass of Cr and O given, we will compute the moles of Cr and O in the compound.


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Problem Details

A chromium oxide compound contains 104.0 grams of chromium and 48.0 grams of oxygen. What is the most likely empirical formula of this compound?

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.