CFCs and the ozone layer
The chemistry that underlies the depletion of ozone in the stratosphere by chlorofluorocarbon molecules is really interesting – an application
Tag: maths
Titration – experimental technique questions
Questions based on carrying out titration and interpreting the results are common both at AS and A level. Before we
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Advanced titration calculations
So now you are confident with run-of-the-mill, text book titration questions it’s time to tackle the types of question you
Basic titration calculations
You may have come across titration calculations at GCSE, and this post builds on that knowledge. The good news is
Working with concentration
It is assumed that you covered the basics of concentration at GCSE. Essentially, you need to be able to work
EXAM STYLE QUESTIONS – GAS CALCULATIONS
If you come unstuck working through the questions, leave a comment and I’ll get back to you. Good luck 😊!
Finding the mass of a volatile liquid
We can use the ideal gas equation to find the molar mass (relative molecular mass) of a volatile liquid. In
The ideal gas equation
The ideal gas equation is an amalgamation of Boyle’s law, Charles’s law and Avogadro’s law and it describes the behaviour
Finding the formula of a hydrocarbon from gas volumes
This leads on directly from the previous position molar volume . The video works through a problem to find the
Continue readingFinding the formula of a hydrocarbon from gas volumes
How to find the volume of gas in a reaction
Avogadro’s law is the basis for calculating the volume of gas produced in a reaction: equal volumes of gases at