Ruby R. GCSE Chemistry tutor, A Level Maths tutor

Ruby R.

£18 - £20 /hr

Studying: Medicine (Doctorate) - Nottingham University

5.0
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1 review| 1 completed tutorial

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About me

Hi there, my name's Ruby and I'm a second year medical student studying at the Universtiy of Nottingham. Throughout my GCSE and A-Level years I have found Maths and Science truly interesting subjects and I'd love to be able to help you understand them more as well. Even into my university years, I still love keeping up to date with the latest scientific concepts - just the other day I was listening to a show on the radio about using fusion as a fuel! How amazing would that be?!

My priority will always be to make sure you go away from a tutorial feeling a sense of achievement, having learnt about concepts that bring you one step closer to your desired grade. I sincerely hope I can help you understand and will absolutely always be open to feedback. Hopefully you'll find my teaching interesting and enjoyable as well!

Hi there, my name's Ruby and I'm a second year medical student studying at the Universtiy of Nottingham. Throughout my GCSE and A-Level years I have found Maths and Science truly interesting subjects and I'd love to be able to help you understand them more as well. Even into my university years, I still love keeping up to date with the latest scientific concepts - just the other day I was listening to a show on the radio about using fusion as a fuel! How amazing would that be?!

My priority will always be to make sure you go away from a tutorial feeling a sense of achievement, having learnt about concepts that bring you one step closer to your desired grade. I sincerely hope I can help you understand and will absolutely always be open to feedback. Hopefully you'll find my teaching interesting and enjoyable as well!

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About my sessions

My approach to teaching will be student-centered, so you guide me in what to teach. This way you gain knowledge in topics that you find most difficult and you get value for money! I'll also try to teach you in ways that best suite your particular learning style.

A typical session will include going through and checking understanding of the key concepts surrounding the topic of interest, using images and other techniques to aid memory. Then we will summarise as concisely as possible to make learning the material easier. Finally, at the end I will give you a few questions of varying difficulty, giving you time to try them independently before I go through them with you.

However, although this is how I would teach normally, essentially you get to decide what makes up our tutorials so that you get the most out of it!

My approach to teaching will be student-centered, so you guide me in what to teach. This way you gain knowledge in topics that you find most difficult and you get value for money! I'll also try to teach you in ways that best suite your particular learning style.

A typical session will include going through and checking understanding of the key concepts surrounding the topic of interest, using images and other techniques to aid memory. Then we will summarise as concisely as possible to make learning the material easier. Finally, at the end I will give you a few questions of varying difficulty, giving you time to try them independently before I go through them with you.

However, although this is how I would teach normally, essentially you get to decide what makes up our tutorials so that you get the most out of it!

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Ratings & Reviews

5from 1 customer review
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Sara (Student)

December 1 2016

She was very formal and she had the whole lesson planned out and her information was very useful and she is a really nice person

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Qualifications

SubjectQualificationGrade
BiologyA-level (A2)A*
ChemistryA-level (A2)A*
Mathematics (Statistics)A-level (A2)A*

General Availability

Before 12pm12pm - 5pmAfter 5pm
mondays
tuesdays
wednesdays
thursdays
fridays
saturdays
sundays

Subjects offered

SubjectQualificationPrices
MathsA Level£20 /hr
ChemistryGCSE£18 /hr

Questions Ruby has answered

How do you increase the rate of a reaction?

A reaction will occur if two reactants collide with each other with enough energy to overcome the 'activation energy'. The activation energy is the minimum amount of energy the reactant particles need in order to react. Therefore to increase the rate of a reaction, more reactant particles need to collide with an energy greater than the activation energy.

There are 4 ways to increase the rate of a reaction:

Increasing the Temperature

When you increase the temperature, the reactant particles have more heat energy. This is converted into kinetic energy so the particles move faster. This has 2 consequences; the number of collisions increases and these collisions occur at a higher energy so are more likely to result in a reaction. Therefore more reactant particles collide at an energy which is above the activation energy, hence the rate of reaction increases.

Increasing the Concentration / Pressure

As concentration increases, reactant molecules are closer together (there are more molecules in a given space). This means more collisions occur so more successful collisions take place. Therefore the reaction rate increases.

Increasing the Surface Area (in Solids)

An example of increasing surface area would be grinding up limestone pebbles to a powder. This increases the rate of reaction because more reactant particles are exposed to each other (i.e. the particles in the middle of the limestone pebble would be exposed to the reactant if the pebble were ground to powder) so there is a greater chance of collisions. With more collisions comes a greater reaction rate.

Adding a Catalyst

A catalyst is a substance which increases the rate of reaction without being used up or changed in the process. The catalyst speeds up the rate of reaction as it provides a lower activation energy, so the reactant particles can collide with less energy but still result in a reaction. It's important, however, to remember that a catalyst only works for a specific reaction.

A reaction will occur if two reactants collide with each other with enough energy to overcome the 'activation energy'. The activation energy is the minimum amount of energy the reactant particles need in order to react. Therefore to increase the rate of a reaction, more reactant particles need to collide with an energy greater than the activation energy.

There are 4 ways to increase the rate of a reaction:

Increasing the Temperature

When you increase the temperature, the reactant particles have more heat energy. This is converted into kinetic energy so the particles move faster. This has 2 consequences; the number of collisions increases and these collisions occur at a higher energy so are more likely to result in a reaction. Therefore more reactant particles collide at an energy which is above the activation energy, hence the rate of reaction increases.

Increasing the Concentration / Pressure

As concentration increases, reactant molecules are closer together (there are more molecules in a given space). This means more collisions occur so more successful collisions take place. Therefore the reaction rate increases.

Increasing the Surface Area (in Solids)

An example of increasing surface area would be grinding up limestone pebbles to a powder. This increases the rate of reaction because more reactant particles are exposed to each other (i.e. the particles in the middle of the limestone pebble would be exposed to the reactant if the pebble were ground to powder) so there is a greater chance of collisions. With more collisions comes a greater reaction rate.

Adding a Catalyst

A catalyst is a substance which increases the rate of reaction without being used up or changed in the process. The catalyst speeds up the rate of reaction as it provides a lower activation energy, so the reactant particles can collide with less energy but still result in a reaction. It's important, however, to remember that a catalyst only works for a specific reaction.

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1 year ago

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