Calculating Empirical Formula

Empirical Formula are a popular question on the exams. This video shows a simple method that will allow you to throw out an empirical formula in minutes! Not only that there is a way in which you can turn empirical formula into molecular formula.

[whiteraincore]

easy way to remember this is S-MADR
S - symbol
M - mass given
A - Ar value
D - divide (when you find the answers to this then divide it again by the smallest number)
R - ratio (then you'll know the amount of each atom)

all you need to do now is white the symbol with the number

[fatemahabdi]

Brilliant! Your teaching methods are methodical just like my teacher's. But I have forgotten it since we done so many other topics

[ameidle]

You explained everything so well! I finally understand this

[vivid]

This took my teacher 65min to teach and it took you 6 👑👑

[benmillbourne]

Excellent video! Explained simply and clearly!

[nishchalmistry]

This has really helped me. Thank you so much! 👍 👍 👍

[sameerk-ozms]

tomorrows the chemistry exam ! thank you

[itztracaaaaaaaaaaaaaaaaaaaaaaa]

Thanks I have chemistry gcse 2day so hopefully imma pass

[jasonwong]

Hello sir, can you explain when the moles are a long decimal number? I find it hard to round the number for the ratio. Thank you!!

[p_]

In tests, will the relative atomic masses be already there??

[mutjk]

Hi i have a question, when we get ratio as decimals, what can we do?

[boliussa]

What about the empirical formulae for Hg₂Cl₂ or K₂S₂O₈ ?

[naheem]

I swear without you. My grades wouldn’t improve from Us to Cs

[basementfox]

Love your teaching methods it helps a lot and I understand faster
Thank you for your hard work