23. Solving a chemistry problem
Seller: Derkach
Price: 1.18 USD
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Product description
- Calculate the molar absorption coefficient of a K2Cr2O7 solution with a concentration equal to 2• 10-4 mol/l at λ = 490 nm, if the transmittance of the solution, measured in a cuvette ℓ = 2.0 cm, turned out to be equal to 35%.
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