What is the volume of the container in litres? 0.5 L = 0.5 dm 3 How many moles of sugar molecules are shown in this container? 1 mole The white space in the box represents the volume occupied by the solvent.Įach blue X represents 1 mole of sugar molecules. The red box represents a 0.5 litre or 0.5 cubic decimetre container.
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No ads = no money for us = no free stuff for you! (ii) volume of solution given moles of solute and molarity: (i) moles of solute given molarity and volume of solution: ⚛ This equation (formula or expression) can be re-arranged to find: V = volume of solution in litres (L) or cubic decimetres (dm 3) N = amount of substance being dissolved (moles of solute) ⚛ Mathematical equation (formula or expression) to calculate the molarity of a solution (concentration in mol L -1) isĬ = concentration of solution in mol L -1 (mol/L or M) ( c stands for amount concentration, solvated solute formula given in round brackets or parentheses) (amount concentration implied by square brackets around solvated solute formula) ⚛ Amount of substance concentration, molarity, the concentration of a solution in mol/L, mol L -1, mol dm -3 or mol/dm 3, is given the symbol c (sometimes M).įor a 0.01 mol L -1 HCl (aq) solution we can write :
⚛ Amount of substance concentration, molarity, has the units mol L -1 (or mol/L or M) or the equivalent SI units of mol dm -3 (mol/dm 3)
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