### Emprical formula

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Messages: 1 - 7 of 7
• #### Message 1.

Posted by connor (U15628309) on Sunday, 24th February 2013

I do not understand how to work out empirical formula, please can someone help me?

• #### Message 2

, in reply to message 1.

Posted by The Bitesize Science Teacher (U14392404) on Sunday, 24th February 2013

Have you looked at this Bitesize page? www.bbc.co.uk/school...

• #### Message 3

, in reply to message 2.

Posted by connor (U15628309) on Sunday, 24th February 2013

Yes, but i still cant remember it, is there an easy way to remember it.

• #### Message 4

, in reply to message 3.

Posted by The Bitesize Science Teacher (U14392404) on Sunday, 24th February 2013

I think that is the easy way.

• #### Message 5

, in reply to message 1.

Posted by Hollie (U15610399) on Friday, 1st March 2013

Empirical Formula is just cancelling down. The same way you would cancel down a fraction in maths to it's simplest form.
If you really struggle, ask your teacher if they have any or could create a resource which takes you through step by step.
As a side note, you'll never get an exam paper entirely focused on empirical formula. Often, you are better off revising the course and leaving out a small chunk that you don't understand than stressing out over it. At the end of the day, a question that directly asks you about empirical formula will only be worth 1 or 2 marks in most cases.

• #### Message 6

, in reply to message 5.

Posted by connor (U15628309) on Friday, 1st March 2013

Thanks, but just to say 1 or 2 marks could be the difference between a c and a b.

• #### Message 7

, in reply to message 6.

Posted by Hollie (U15610399) on Saturday, 2nd March 2013

That's very true. But it's more important to revise and be confident with everything else than spend lots of time stressing over a small part of the specification.
Good Luck!

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