MYTUTOR SUBJECT ANSWERS

551 views

What is empirical formula and how is it worked out?

This is the lowest/simplest ratio of the molecule. 

For example propene has the formula C3H6 - if we look a the subscript numbers (the ones down here!) we can see that smaller numbers are possible. It is important to know the relationship between these numbers. In this case you can write this simply as CnH2n. Therefore the empirical formula for propene is CH2.

Another example is propane which is C3H8We can work out that the relationship is as follows: CnH2n+2 and therefore the empirical formula is CH4.

Emma W. GCSE Biology tutor, A Level Biology tutor, GCSE Chemistry tut...

1 year ago

Answered by Emma, a GCSE Chemistry tutor with MyTutor


Still stuck? Get one-to-one help from a personally interviewed subject specialist

356 SUBJECT SPECIALISTS

£22 /hr

Emily P.

Degree: Psychology (Bachelors) - Exeter University

Subjects offered:Chemistry, Psychology+ 4 more

Chemistry
Psychology
English Literature
English Language
Biology
-Personal Statements-

“Experienced tutor currently studying at a top UK university, I am excited to help you achieve the best grades for you!”

£18 /hr

Axel R.

Degree: Biochemistry with Management (Bachelors) - Imperial College London University

Subjects offered:Chemistry, Science+ 2 more

Chemistry
Science
Maths
Biology

“Postgraduate student keen on helping you understand Maths and Science! No matter the level, you CAN succeed!”

MyTutor guarantee

£22 /hr

Marie B.

Degree: Neuroscience (Doctorate) - University College London University

Subjects offered:Chemistry, Spanish+ 5 more

Chemistry
Spanish
Science
Human Biology
German
-Personal Statements-

“I belive practice makes perfect! Ultimatley I like to make science fun and interesting :)”

About the author

£22 /hr

Emma W.

Degree: Veterinary Medicine (Bachelors) - Liverpool University

Subjects offered:Chemistry, Science+ 2 more

Chemistry
Science
Maths
Biology
-Personal Statements-

“100% pass rate with numerous A's in 2017 - I am passionate about students pushing themselves in Maths and Science!”

You may also like...

Posts by Emma

If 2x + y = 13 and 3x - y = 12, what are the values for x and y?

What is empirical formula and how is it worked out?

What is the difference between a scalar and a vector quantity?

What is the difference between diffusion and active transport?

Other GCSE Chemistry questions

Why can ammonium sulfate be described as a salt?

What mass of CO2 will be produced when 50 g of CaCO3 decomposes?

25cm3 of NaOH (2M) were titrated with 1.25M H2SO4. Write down the balanced reaction equation. Calculate the number of moles of NaOH used in the titration and hence deduce the volume of sulfuric acid used in the titration. Give your answer in dm3.

How many moles of Magnesium must react with excess Oxygen to produce 80g of Magnesium oxide?

View GCSE Chemistry tutors

We use cookies to improve your site experience. By continuing to use this website, we'll assume that you're OK with this. Dismiss

mtw:mercury1:status:ok