Chemistry A-Level
standard solutions
What standard solutions means in Chemistry A-Level, as defined for AQA.
Definition of standard solutions
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Reference: AQA
Solutions of known concentration made up by accurate dilution of a stock solution, whose absorbance is measured to plot the calibration curve.
Topics that use standard solutions
- Formation of coloured ions (A-level only) (AQA A-Level)
Related terms
- absorption of visible light
- absorption spectrum
- calibration curve
- colour changes on adding reagents
- complementary colour
- filter selection
- ground state and excited state
- size of the d orbital gap
Using standard solutions in the exam
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