MYTUTOR SUBJECT ANSWERS

360 views

So, what actually is a mole?

A mole is simply a unit of measurement of any substance that contains as many atoms as there are in 12 grams of Carbon-12.

 

Why Carbon-12?

Carbon-12 is the standard by which we compare the mass of any other molecule however; it was not the first option. Originally Hydrogen-1 was used but this was soon discarded as they realized that because of its low mass it was very inaccurate. This is because Hydrogen-1 had a mass of 1.007825- you can imagine how hard it would be to calculate precisely every time! Whereas, Carbon-12 has a mass of 12.000000 so this allows for more precise answers when working out the mass of other molecules.

Patrick Q. Mentoring -Medical School Preparation- tutor, GCSE Chemist...

2 years ago

Answered by Patrick, a GCSE Chemistry tutor with MyTutor

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

162 SUBJECT SPECIALISTS

£24 /hr

James L.

Degree: Medical Sciences (Bachelors) - Exeter University

Subjects offered: Chemistry, Science+ 3 more

Chemistry
Science
Physics
Maths
Biology

“Hi, I'm James, a 2nd year Medical Science student. I'm really passionate about science, and I hope i can share some of it with you! ”

£18 /hr

Amilah C.

Degree: Physics with a year abroad (Masters) - Edinburgh University

Subjects offered: Chemistry, Physics+ 1 more

Chemistry
Physics
Maths

“Hi there, welcome to me page! About Me: I am currently studying Physics at the University of Edinburgh. From a young age, science has always been a passion of mine, and hopefully I can convey this in my tutorials. Previously, I found...”

£18 /hr

Zaid A.

Degree: Medicine (Bachelors) - University College London University

Subjects offered: Chemistry, Science+ 6 more

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

“My approach to tutoring is based on you and your needs. Having taught students from the ages of 7 to 18 of varying abilities, I can confidently adapt my teaching style to accommodate for your needs helping you to reach your goals. Hav...”

About the author

Patrick Q.

Currently unavailable: for regular students

Degree: Medicine (Bachelors) - Bristol University

Subjects offered: Chemistry, Science+ 2 more

Chemistry
Science
Biology
-Medical School Preparation-

“Interactive and personal tutorials to get the best grades possible!”

You may also like...

Posts by Patrick

How can I help you get in to medical school?

I'm doing GCSEs, isn't it too early to be thinking about applying for medicine?

So, what actually is a mole?

Where did mitochondria come from?

Other GCSE Chemistry questions

Describe covalent bonding

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

What is the bonding structure of a metal

Why don't atoms have an overall charge?

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