MYTUTOR SUBJECT ANSWERS

679 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

208 SUBJECT SPECIALISTS

£36 /hr

Hannah S.

Degree: Medicinal Chemistry and Pharmacology (Masters) - Liverpool University

Subjects offered:Chemistry, English Language+ 3 more

Chemistry
English Language
Biology
-Personal Statements-

“I'm currently studying medicinal chemistry and pharmacology at the University of Liverpool as part of an 'integrated masters' course designed to fast track students interested in a chemistry as a profession or continuing study to a PhD...”

£18 /hr

Sahil N.

Degree: Medicine (Bachelors) - Queen Mary, London ('13) University

Subjects offered:Chemistry, Maths+ 3 more

Chemistry
Maths
Biology
-Personal Statements-
-Medical School Preparation-

“About me: Hi there! I'm Sahil, a friendly and enthusiastic medical student at Barts and the London School of Medicine. Teaching has always been a wonderful passion of mine and I truly believe there is nothing more satisfying than help...”

£22 /hr

Nketia O.

Degree: Pharmacy (Masters) - Durham University

Subjects offered:Chemistry, Physics+ 1 more

Chemistry
Physics
Biology

“Hello! My name’s Nketia. I got an A* in A-Level Biology and an A in A-Level Chemistry. I’m a second-year Pharmacy student who is ready to teach others.”

About the author

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

Patrick Q.

Currently unavailable: for regular students

Degree: Medicine (Bachelors) - Bristol University

Subjects offered:Chemistry, Science+ 2 more

Chemistry
Science
Biology
-Medical School Preparation-

“Top tutor from the renowned Russell university group, ready to help you improve your grades.”

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

What exactly is a mole of something?

Why does copper make a good metal to use in electrical wiring?

Where do electrons go in an atom?

What is the volume of carbon dioxide released at room temperature and pressure when 6.2 g of copper carbonate reacts with excess dilute sulfuric acid?

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