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- state if true or false 1. Considering that concentration and the size of sample container are the same, a sample with a higher molar absorptivity will have a higher TRANSMITTANCE than a sample with the lower E (molar absorptivity). 2. Considering that concentration and the size of sample container are the same, a sample with a higher molar absorptivity will have a higher ABSORBANCE than a sample with the lower E (molar absorptivity). 3. The higher the concentration of a sample is the higher the transmittance will be. 4. Spectrophotometry is the study of how light interacts with matter 5. During an absorbance reading, light must pass through the opaque side of the cuvette. 6. Distilled water is an acceptable blank solution for any sampleI have 4 Questuion 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 ?FYI: 37-40 is like a),b),c) and d)
- Answer is Ve = 47.79mL ; pH = 8.74 , 5.35 , 4.87 , 4.40 , 3.22 , 2.58 Please show all work detail pleaseAssuming that the path length of your cuvette is exactly 1.00 cm, calculate the molar absorptivity for each of your KMn04 solutions at the wavelength of maximum absorbance, and take the average value. Tube 8.0x10^-2M KMnO4 Distilled water Sulfuric acid %T @520nm 1 1 ml 7 ml 2ml 68 2 2 ml 6 ml 2ml 53 3 3 ml 5 ml 2ml 45 4 4 ml 4 ml 2ml 29c32 plz answer what u can
- IR Spec question: https://webbook.nist.gov/cgi/cbook.cgi?ID=B6007500&Mask=80 The spec is chloroform, deutero. I don't know what the peaks are around 3200 cm-1, 3000 cm-1 and 2300 cm-1.When we perform Bradford Assay to measure protein concentration, the spectrophotometer is set 595 nm because: a. the excitation peak of Coomassie Blue is best observed at 595 nm b. when Coomassie Blue binds to proteins, its maximum absorbance shifts to 595 nm c. the reducing effects of Coomassie Blue shifts the protein's maximum absorbance to 595 nm d. myoglobin is best observed at 595 nmThe absorbance values at 250nm of 5 standard solutions, and sample solution of a drug are given below: Conc. (ug/ml) A 250 nm10 0.16820. 0.32930 0.50840. 0.66050 0.846Sample. 0.661Calculate the concentration of the sample
- I really need help getting this question right pls pls help me asap and make sure everything’s correct 100000% pls and thank youanswer is on bracket. thank you.Calculate the concentration of lycopene in your orange fraction using using Beer's law equation A=ExBxC A is the measured absorbance, E is the molar extinction coefficient (M-1cm-1) at a particular wavelength, B is the path length (in cm) and C is the analyte concentration (M). A= 0.602. Wavelenght is 500.95nm. Molar extinction coefficients is 123,000M-1cm-1