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The first step is to calculate the moles of the reactant CH₃CH₂CH₂Br. To do this you need the formula:moles = m/Mr where m is the mass in grams and Mr is the molar mass wh...

Chemical reactions can be written as an equation with molecules on each side of the equation. Balancing equations is about ensuring that the number of atoms of each element on the left hand side of an equ...

Below is 2 examples of questions that you could be asked. During the session, I will run through on the whiteboard, a good method of completing this style of question. _GaF₃ + _Na₃PO...

The first thing to think of here is what does a mole actually mean?Using the equation: Moles = Mass (g) / Molar Mass we can first find out what the molar mass of CaCO₃ is.TO THE PERIODIC TABLE!...

As an acid is being added to a base, you first need to calculate what is left after they react. Without doing any calculations, we can already see that the acid is in excess as both solutions have the sam...