Laura B. A Level Chemistry tutor, A Level Maths tutor, A Level Russia...

Laura B.

Currently unavailable: for regular students

Studying: Chemistry (Bachelors) - York University

4.9
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7 reviews| 11 completed tutorials

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About me

Hello! My name is Laura and I am very passionate about science! I am currently studying Chemistry with Biological and Medicinal Chemistry at University of York and I really hope that my passion about science will inspire you!  I am very friendly, communicative and always ready to help.  During the lesson, I am going to use different techniques to explain the material and I will also give you my own tips on answering exam questions. I hope I become a person who helps you to achieve success!Hello! My name is Laura and I am very passionate about science! I am currently studying Chemistry with Biological and Medicinal Chemistry at University of York and I really hope that my passion about science will inspire you!  I am very friendly, communicative and always ready to help.  During the lesson, I am going to use different techniques to explain the material and I will also give you my own tips on answering exam questions. I hope I become a person who helps you to achieve success!

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Ratings & Reviews

4.9from 7 customer reviews
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Neelam (Student)

November 6 2016

Laura marked my papers and gave me very helpful commentary on the questions that I answered wrong as well as tips to help with the exam questions for the future.

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Neelam (Student)

October 15 2016

Laura was very helpful and explained each of the concepts very well. She also gave me exam tips and showed me what was required to answer exam questions.

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Dorna (Student)

November 5 2016

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Louise (Parent)

October 31 2016

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Qualifications

SubjectQualificationGrade
MathsA-level (A2)A
ChemsitryA-level (A2)A
Russian LanguageA-level (A2)A*

General Availability

Before 12pm12pm - 5pmAfter 5pm
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saturdays
sundays

Subjects offered

SubjectQualificationPrices
ChemistryA Level£20 /hr
MathsA Level£20 /hr
RussianA Level£20 /hr
ChemistryGCSE£18 /hr
MathsGCSE£18 /hr
RussianGCSE£18 /hr
-Personal Statements-Mentoring£22 /hr

Questions Laura has answered

Define the terms atomic number and mass number

The atomic number, Z, is the number of protons in the nucleus. The mass number ,A, is the total number of protons and neutrons in the atom.

The atomic number, Z, is the number of protons in the nucleus. The mass number ,A, is the total number of protons and neutrons in the atom.

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1 year ago

515 views

What is a buffer solution? How to make a buffer solution?

Buffer solution is a system that minimises the change in pH when a small amount of acid or base is added. There are two types of buffer solutions- alkaline buffer solution and acidic buffer solution. The pH of alkaline buffer solution is always greater than 7, whereas the pH of acidic buffer solution is always smaller than 7.

In order to make alkaline buffer solution, weak base and its salt (chloride) must be mixed together, for example, ammonia and ammonium chloride. To prepare acidic buffer solution, weak acid and its salt must be mixed. For example, ethanoic acid and sodium ethanoate. 

Buffer solution is a system that minimises the change in pH when a small amount of acid or base is added. There are two types of buffer solutions- alkaline buffer solution and acidic buffer solution. The pH of alkaline buffer solution is always greater than 7, whereas the pH of acidic buffer solution is always smaller than 7.

In order to make alkaline buffer solution, weak base and its salt (chloride) must be mixed together, for example, ammonia and ammonium chloride. To prepare acidic buffer solution, weak acid and its salt must be mixed. For example, ethanoic acid and sodium ethanoate. 

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1 year ago

1402 views

What is a formula of Potassium Sulfate?

First, look at the Periodic Table. Potassium is in group 1 so has a +1 charge,  Li+

Sulphates always have a -2 charge, SO4 2-

Now combine two ions together so we can get a neutral compound. We have +1 charge on Li ion and -2 charge on SO4 ion. Therefore, we need two Li+ ions for one SO4 2-

Now the charges cancel out and we have a neutral salt Li2SO4

First, look at the Periodic Table. Potassium is in group 1 so has a +1 charge,  Li+

Sulphates always have a -2 charge, SO4 2-

Now combine two ions together so we can get a neutral compound. We have +1 charge on Li ion and -2 charge on SO4 ion. Therefore, we need two Li+ ions for one SO4 2-

Now the charges cancel out and we have a neutral salt Li2SO4

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1 year ago

1062 views

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