find the A , T , T% of a 2.4X10-3 mol L-1 solution of a substance whose molar absorptivity is 313 L M-1 cm -1 at 520 nm when measured in a cell of 2.00 cm pathlength ؟
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Q1: find the A , T , T% of a 2.4X10-3 mol L-1 solution of a substance whose molar absorptivity is 313 L M-1 cm -1 at 520 nm when measured in a cell of 2.00 cm pathlength ؟
Q2: A sample in a 1 cm cuvette transmits 79% of light at 280 nm , what is the absorbance ? if the molar extinction coefficient is 2.0 M-1 cm-1 , what is the concentration of the sample ?
Q3 : the aspirin an analgesic form complex with metal ion which has a molar absorpitvity of 8000 L M-1 cm-1 at ( lenada max 435 nm ) . calculate the absorbance of 6.77 X 10-5 M solution of the complex measured in a 1.00 cm cell at 435 nm ?
Q4 :Find the A and T% of a 6.5X10-4 Mol L-1 solution of a drug ( molecular weigth 200 ) whose absorpitvity is 0.026 L cm-1 g-1 at 520 nm when measured in a cell of 2.00 cm pathlength ?
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