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Electron pairs arrange themselves so they are as far apart as possible (electron pair repulsion theory). In a covalent compound, the number of electron pairs around the central atom determines the shap...

The Gibbs free energy of a process is a measure of how readily that process will proceed on its own - a negative value means that the reaction is spontaneous, a positive value means that it is not, and...

This is the sort of question you are likely to stumble across in an IB HL Paper 2 examination. It would probably carry a few more marks and thus require a longer answer, but that is reason to panic!First ...

Mass spectrometry is a technique we use to analyse and determine the structure of compound. Generally, it works by injecting your compound into an ionisation chamber, ...

A mole is simply a number, an amount of something. Like when people refer to a dozen of eggs they mean 12 eggs, when someone says a mole of atoms they mean 6.022 x 10²³ atoms. A m...