Please enable JavaScript.
Coggle requires JavaScript to display documents.
the mole and equations & the mole and concentration equation (the…
the mole and equations & the mole and concentration equation
balancing equations using reacting masses
2) dividing the number of moles of each substances by the smallest number of moles in the reaction
3) if any of the numbers arnt whole numbers multiply all numbers by the same amount so that they all become whole numbers
1) dividing the mass of each substances by its relative formula mass to find the number of moles
reaction stops when one reactants is used up
2) the reactants that's used up in a reaction is called the limiting reactants
3) the amount of product formed is directly proportional to the amount of limiting reactants
1) the reaction stops when all of one of the reactants is used up any other reactants are excess they are usually added in excess to make sure that the other reactant is used up
4) this is because if you add more reactants there will be more reactants particles to take part in the reaction which means more particles
the amount of product depends on the limiting reactants
3) find out how many moles there are of the substance you know the mass of
4) use the balanced equation to work out how many moles there'll be of the other substance in this case that's how many moles of product will be made of this many moles of reactants
2) work out relative formula masses of the reactant and product you want
5) use the number of moles to calculate the mass
1) write out the balanced equation
concentration is a measure of how crowded things are
3) one way to measure the concentration of a solution is by calculating the mass of a substance in a given volume of solution the units will be units of mass/units of volume
CONCENTRATION = MASS OF SOLUTE/ OLUME OF SOLVENT
2) the more solute there is in a given volume the more concentration the solution
1) lots of reactions in chemistry take place between substances that are dissolved in a solution the amount of a substance in a certain volume of a solution is called its concentration