(chemistry only) (HT only) Calculate an unknown concentration when reacting volumes are known and one concentration is known.

In the subtopic Concentrations in mol/dm3 and titration calculations, this learning objective focuses on (chemistry only) (HT only) Calculate an unknown concentration when reacting volumes are known and one concentration is known. It sits within Using concentrations of solutions in mol/dm3 (chemistry only) (HT only) for AQA GCSE Chemistry 8462 Unit 4.3, so the explanation must stay anchored to quantitative chemistry rather than drifting into a general chemistry idea. Approved keywords to use include chemistry only, HT only, concentration, volume. Reacting volumes. means the volumes of solutions that participate in a chemical reaction, used to calculate unknown concentrations Avoid the mistake of students often forget to convert volumes from cm3 to dm3 when calculating concentration in mol/dm3; instead, always convert cm3 to dm3 by dividing the volume in cm3 by 1000 before using it in concentration calculations For exam answers, practice calculating unknown concentrations using the formula: concentration (mol/dm3) = moles/volume (dm3)