Define what 1 mole is
1 mole is just a unit of the amount of particles present in a substance. Here are several definition that all interlink: Mathematically speaking, 1 mole = mass of substance / Molecular Formula Mass. For it to be 1 mole, the mass has to be the same as the Molecular Formula. So, in 23 grams of sodium, there are 1 moles, because the Mr of sodium is 23. A question to think about: are there 16g or 32g in 1 mole of Oxygen?
YH
Related Chemistry GCSE answers
All answers ▸If 350gNaCl is dissolved in water and made up to a volume of 3dm^3, calculate the concentration of the solution.
Balance the equation for the reaction of sodium hydroxide with sulphuric acid.
Explain the type of bonding in sodium chloride.
Explain the bonding in a metal complex, compare this to an ionic compound and covalent bonding