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Concentration Calculations

You might be asked to calculate the concentration

  • Titrations are experiments that let you find the volumes needed for two solutions to react together completely

  • If you know the concentration of one of the solutions, you can use the volumes from the titration experiment, along with the reaction equation, to find the concentration of the other solution

Find the concentration in mol/dm3

  • You might remember the formula for working out the concentration of a substance in mol/dm3, this time it’s used in a triangle

    • No of moles

    • Concentration x volume

      • Work out how many moles of the known substance you have using equation

      • Work out concentration of unknown stuff

Converting mol/dm3 to g/dm3

  • To find the concentration in g/dm3 start by finding the concentration in mol/dm3 using the steps above

  • Then convert the concentration in mol/dm3 to g/dm3 using the equation mass=moles x M

    • Work out the relative formula mass for the acid

    • Convert the concentration in moles into concentration in grams

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Concentration Calculations

You might be asked to calculate the concentration

  • Titrations are experiments that let you find the volumes needed for two solutions to react together completely

  • If you know the concentration of one of the solutions, you can use the volumes from the titration experiment, along with the reaction equation, to find the concentration of the other solution

Find the concentration in mol/dm3

  • You might remember the formula for working out the concentration of a substance in mol/dm3, this time it’s used in a triangle

    • No of moles

    • Concentration x volume

      • Work out how many moles of the known substance you have using equation

      • Work out concentration of unknown stuff

Converting mol/dm3 to g/dm3

  • To find the concentration in g/dm3 start by finding the concentration in mol/dm3 using the steps above

  • Then convert the concentration in mol/dm3 to g/dm3 using the equation mass=moles x M

    • Work out the relative formula mass for the acid

    • Convert the concentration in moles into concentration in grams