Bbc bitesize quantitative chemistry

No matter what Chemistry specification you're studying, Seneca's revision courses contain everything you need to know for your GCSE exam. Seneca covers foundation and higher tier across Double Award, Co-ordinated Sciences, Combined Sciences and your straight run-of-the-mill Chemistry. So whatever class you're taking, you can sign up for FREE and learn exactly what you need to know! Take a look at the specs and see a short intro to bbc bitesize quantitative chemistry most popular courses below.

Everything you need for GCSE Chemistry revision, from past papers and revision pages, to revision cards and exam questions by topic. Gold Standard Education. Learn an entire GCSE course for maths, English and science on the most comprehensive online learning platform. Each paper has been designed by Chemistry experts, tutors and examiners, to ensure they are as accurate as possible in replicating the real exams. The profit from every pack is reinvested into making free content on MME, which benefits millions of learners across the country. Each paper has been designed by Science experts, tutors and examiners, to ensure they are as accurate as possible in replicating the real exams. These science flashcards have been created by expert tutors alongside student feedback and experienced content developers to provide the very best revision cards.

Bbc bitesize quantitative chemistry

Magic for Learning and Revision. Quantitative chemistry is all about calculations using the mole as a unit. In maths, you expect to be doing calculations but in chemistry it can come as a bit of a shock to the system! Many students panic at the mention of carrying out chemical calculations but, with a little understanding and knowledge of certain ideas and a few techniques, they can become a lot less worrying. Calculations are a good way of picking up marks in the GCSE. Even when you don't get the answer right, you will always get credit for your working out - so always show how you arrived at your answer. The key idea that lies behind quantitative chemistry is the mole. In the same way that you use the word a dozen to mean twelve of something and a couple to mean two of something, the mole simply means 6 x 10 23 particles of matter. Those particles can be atoms, ions or molecules. This is extremely useful since particles of matter always combine in predictable and definite proportions e. Despite being huge, it is easy to count out this number of particles as it is based on atomic masses; if you weigh out the formula mass of a substance, you have one mole of particles. The formula of sodium is Na so its its formula mass is equal to its atomic mass which is 23 amu so if you have 23 g of sodium, you know that you have 6 x 10 23 one mole of sodium atoms. Weigh out The mole makes life easier as far as quantitative chemistry is concerned. It works with molecules and giant ionic lattices as well as with elements.

The Rate and Extent of Chemical Changes.

Calculations in chemistry - AQA. Relative formula masses can be calculated and used in conservation of mass calculations. Calculations can be carried out to find out concentrations of solution and uncertainties in measurements. Calculations in chemistry - Higher - AQA. The mole is the unit for amount of substance.

Maths questions often start with the command word calculate. You need to use numbers given in the question to work out the answer. Listen to the full series on BBC Sounds. Brush up on the maths you need for your exam - percentages, averages and converting units. Maths questions might ask you to plot or complete a graph or table. When you draw a graph, make sure you:. You may be given a grid with axes labelled and scales already given.

Bbc bitesize quantitative chemistry

Atomic structure and the periodic table. Bonding, structure and properties. Science exam techniques. GCSE Chemistry: exam-style questions. Topics include the periodic table, equations and more. GCSE Chemistry: quick-fire questions. Revise topics such as the periodic table and equations. Atoms, elements and compounds - AQA. Chemists use symbols and formulae to represent elements and compounds. Word equations and balanced chemical equations represent the changes that happen in chemical reactions.

371 usd to gbp

If you wish to subscribe straight away, visit our Join Us page. Life Cycle Assessments. Questions and Answers. Quantitative Chemistry. PbClCO 3. Then it is easy to take 1 or 2 sections during each revision sessions without getting overwhelmed. Edexcel iGCSE Chemistry This free, online revision course includes states of matter, atomic structure, chemical formulae, bonding, atmospheric chemistry, metal extraction and much more. The quick way to this answer is to use the answer to the previous question. Calculations are a good way of picking up marks in the GCSE. Already have an account? Limiting Reactants. Many students panic at the mention of carrying out chemical calculations but, with a little understanding and knowledge of certain ideas and a few techniques, they can become a lot less worrying. Great preparation for your exams.

Calculations in chemistry - AQA. Relative formula masses can be calculated and used in conservation of mass calculations.

The formula of sodium is Na so its its formula mass is equal to its atomic mass which is 23 amu so if you have 23 g of sodium, you know that you have 6 x 10 23 one mole of sodium atoms. This free, online revision course includes everything you need. Don't have an account? Comparing Results. Car airbags inflate when an impact causes a mixture of chemicals to react. MME Revision Challenge. Life Cycle Assessments. Or take a look around the website and start at our Home page. Your personal data will be used to support your experience throughout this website, to manage access to your account, and for other purposes described in our privacy policy. Email address. The Scientific Method.