PremiumJoe M. GCSE Biology tutor, A Level Biology tutor, A Level Chemistry t...
£24 - £26 /hr

Joe M.

Degree: Biology (Bachelors) - Durham University

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About me

Hi there! My name is Joe and I'm a finalist Biological Sciences student at Durham University. I've been a tutor with MyTutor for nearly 3 years now and have taught many different students from all walks of life, and I'm confident that I can use my skills and knowledge to help you learn more about your subjects and achieve the grades you deserve. I've been a keen scientist from a young age- I love learning about the world around us and how it works. My passion for my subjects guarantees that our tutorials will be fun, engaging and informative! I'm a student myself, having completed my A-levels in 2014, so I have a great and up-to-date knowledge of the modern syllabi- and I know just how valuable a good tutor can be. I find it incredibly rewarding to share my knowledge with other students. I'm driven by seeing my students improve over the course of a tutorial plan, and even more so by hearing that they've achieved the grades they want. As a Premium Tutor with MyTutor, I'm one of the most experienced and knowledgeable tutors available to you. If you'd like to chat and see how I can help you, feel free to drop me a message and we can discuss anything you'd like to cover in our tutorials. If you'd like, it would be my pleasure to meet with you informally in a free Meet-the-Tutor session before any tutorials take place, so we can get to know each other and I can learn more about what you'd like to gain from our tutorials.

About my sessions

As a student myself, I know how important it is to stay on track with your studies, and to have informative resources available to you to facilitate your learning. When preparing for lessons, I compile a comprehensive study guide for each and every one of my students to delve into after their tutorial, so they can review the information they have learned in the classroom and build on their knowledge even further. My study guides also cover additional snippets of info and tips on how to study efficiently in the lead-up to exams. The most important thing for me is that my students can learn in an encouraging teaching environment, where they feel comfortable asking questions and aren't afraid of being wrong. I'm a tutor, not a school teacher, meaning I work on building a strong and respectful working relationship with each of my students to ensure you feel engaged and welcome in the classroom. I adapt my teaching style for every student to suit what YOU want to learn, meaning each of my students receives a tailor-made tutorial for their learning style and current level of knowledge. To measure your progress, I like to revisit topics that we have covered in the past on a regular basis. This is to help you refresh your memory of these tasks and consolidate your knowledge, and also to give me an indication of where you are with your learning and help me identify areas in which you can improve.

Subjects offered

SubjectLevelMy prices
Biology A Level £26 /hr
Chemistry A Level £26 /hr
Biology GCSE £24 /hr
Chemistry GCSE £24 /hr
Maths GCSE £24 /hr
Science GCSE £24 /hr
Maths 13 Plus £24 /hr
Science 13 Plus £24 /hr
Maths 11 Plus £24 /hr

Qualifications

QualificationLevelGrade
BiologyA-LevelA*
DramaA-LevelA*
ChemistryA-LevelA
MathsA-LevelA
Disclosure and Barring Service

CRB/DBS Standard

No

CRB/DBS Enhanced

No

General Availability

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Ratings and reviews

5from 24 customer reviews

RICHARD (Parent) June 19 2016

Has been an amazing help

RICHARD (Parent) May 25 2016

Great tutorial

RICHARD (Parent) May 4 2016

Great first tutorial.

Osasuyi (Student) May 1 2016

A very intelligent and understandable tutor
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Questions Joe has answered

How do you calculate the pH of a weak acid?

Strong acids dissociate fully in solution. Examples of strong bases include HCl and H2SO4. Organic acids, such as methanoic acid or oxalic acid, as well as some inorganic acids such as hydrogen fluoride, are weak acids. A weak acid differs to a strong acid in that it does not fully dissociate ...

Strong acids dissociate fully in solution. Examples of strong bases include HCl and H2SO4. Organic acids, such as methanoic acid or oxalic acid, as well as some inorganic acids such as hydrogen fluoride, are weak acids.

A weak acid differs to a strong acid in that it does not fully dissociate in solution (it does not release all of it's potential hydrogen ions). This means that you cannot use the usual formula (pH=-log
10[H^+]) by simply letting [H^+] equal the concentration of the acid. Instead, you must use the acid dissociation constant, Ka. Where, at equilibrium, [H^+] is the hydrogen ion concentration, [A^-] is the dissociated acid concentration, and [HA] is the concentration of the undissociated acid:
 

Ka = ([H^+][A^-])/[HA]

If we assume that when the weak acid dissociates, [H^+]=[A^-], then:
 

Ka = ([H^+]^2)/[HA]

If you know the equilibrium concentration of the acid and the Ka (which you will usually be given), you can rearrange this formula to give [H^+], which should be all you need to work out the pH.

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