Finding Empirical And Molecular Formula Given Mass Percent Example

👉 Support me on Patreon 👈

💻 My highly recommended chemistry resources
HIGH SCHOOL / GENERAL CHEMISTRY

ORGANIC CHEMISTRY

In this video, you'll learn how to find the empirical and molecular formula of an unknown compound if given the mass percent of the compound. We first start by going over all the steps.

Steps
1) Change % into grams
2) Convert grams into moles by dividing grams
by molar mass
3) Divide all moles by the smallest number
4) If moles are all whole numbers, then you're done
5) If not, multiply all moles by number (usually 2 or 3)
such that everything is a whole number

Then we apply the step to an example question, going through it step by step.

By the end of the video, you'll know exactly how to find the empirical and molecular formula if given mass percent.

[quevo_iv]

Appreciate the help. I was so lost throughout the whole year, and this video instantly cleared up all of my confusion

[AK-opbe]

Life saver 🙏 I have all your vids in a playlist to study for my final 😭

[emilys]

Thank you so much, you explain so much better than my teacher does 😭