MYTUTOR SUBJECT ANSWERS

250 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...

5 months ago

Answered by Emma, a GCSE Chemistry tutor with MyTutor


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

198 SUBJECT SPECIALISTS

£18 /hr

Ben A.

Degree: Medicine (Bachelors) - University College London University

Subjects offered: Chemistry, Physics+ 6 more

Chemistry
Physics
Maths
Biology
.UKCAT.
.BMAT (BioMedical Admissions)
-Personal Statements-
-Medical School Preparation-

“Hello,I am a first year medical student at University College London, When I was in sixth form, I helped tutor the younger years and I always enjoyed it, so I decided to keep it on in my university years.My subjects are the three m...”

£18 /hr

Alex R.

Degree: Physics (Masters) - Edinburgh University

Subjects offered: Chemistry, Physics+ 3 more

Chemistry
Physics
Music
Maths
Computing

“About Me: I am a Physics student at the University of Edinburgh, however I also study Computer Science. I believe there is a beauty to Science and Mathematics, however it requires hard work and understanding to be fully appreciated. I ...”

MyTutor guarantee

£18 /hr

Ed W.

Degree: Medicine (Bachelors) - Edinburgh University

Subjects offered: Chemistry, Maths+ 3 more

Chemistry
Maths
Further Mathematics
Biology
-Medical School Preparation-

“Hi! I'm Ed and I'm currently studying Medicine at the University of Edinburgh. I tutor at GCSE and A Level forBiology, Chemistry and Maths, and at GCSE level forFurther Maths. These are subjects I'm very comfortable in and enjoy. With ...”

About the author

£18 /hr

Emma W.

Degree: Veterinary Medicine (Bachelors) - Liverpool University

Subjects offered: Chemistry, Science+ 2 more

Chemistry
Science
Maths
Biology
-Personal Statements-

“Who am I? I am a veterinary student at the University of Liverpool. From a young age I have always had a keen interest in science - and animals of course! I want to share my passion for science and maths with others, and show that it'...”

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 sodium chloride conduct electricity in the molten state but no in the solid state?

What is the mass (in grams) of 0.1 moles of CaCO3?

Why do substances need to be either molten or dissolved in water for electrolysis to occur?

What are the 3 main variables within a scientific experiment?

View GCSE Chemistry tutors

Cookies:

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

mtw:mercury1:status:ok