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Chemistry vocabulary · Solutions and Concentration

Concentration

Meaning in chemistry, with examples

nounCore term

In chemistry, concentration means: The amount of a substance in a given volume of solution or mixture, for example in moles per liter (mol/L), grams per liter or parts per million (ppm).

In Turkish: derişim, konsantrasyon

How it is used

Used in every lab, report and method. You determine, measure, increase or lower the concentration. Square brackets mean concentration in equations, so [H⁺] is read 'the concentration of H plus'.

Example sentences

  1. The concentration of the stock solution is 1.0 mol/L.

  2. Increasing the concentration of the reactants speeds up the reaction.

Common collocations

  • final concentration
  • high concentration
  • determine the concentration
  • concentration of
  • unknown concentration
  • molarityA measure of concentration: the number of moles of solute in one liter of solution. Its unit is mol/L, written M and read 'molar'.
  • solutionA uniform mixture in which one substance (the solute) is completely dissolved in another (the solvent). Salt water and sugar dissolved in tea are everyday examples.
  • diluteTo make a solution weaker by adding more solvent, usually water. As an adjective, the word describes a solution with a low concentration.
  • soluteThe substance that gets dissolved in a solvent to make a solution. In salt water, the salt plays this role and the water is the solvent.
  • standard solutionA solution whose concentration is known accurately. It is used to find the concentration of other solutions in titrations or to build calibration curves.

More terms: Solutions and Concentration

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