What information can GC provide? **Select ALL answers that apply** a. boiling point b. Rf c. ratio of products d. comparison to known compounds e. optical activity f. molecular weigh
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- A polymer P, consisting of two monodisperse fractions; fraction A with molecular weight of 1,000 g/mole and fraction B with a molecular weight of 100,000 g/mole. The batch contains an equal number of each fraction. Calculate the number average and the weight average molecular weight of the polymer. Describe the most important methods for preparing synthetic membranes. Which criterion is often used to choose the preparation method?a. A 1.59 g sample containing KI was analyzed gravimetrically and 0.0538 g of Barium iodate was recovered. Express the results of this analysis as percent potassium iodide. b. What are the 4 most common reagents for open vessel decomposition of inorganic analytical samples?Can it please be explain just like in the upload
- Propose an acceptable structure that is consistent with the data.Calculate the retardation factor (Rf) for dissolved Tetrachloroethene contamination given the bulk density of soil is 2.4 gm/cc, fraction organic content (foc) of soil is 0.005, and the Organic Carbon Partition Coefficient (Koc) is the number you look up in the table. HInt: Use Fetter Equation (Koc = Kd /foc to calculate Kd. Group of answer choices 1.4 to 2.7 l/gm 1.08 to 1.2 Cannot be calculated from given information. 3.25 to 4.5 1.05 to 1.2 l/gmIf Vsu= Vorg, how many times should the extraction process be repeated so that 1 g of substance with KD= 2.25 passes 90.5% to the organic phase?
- Calculate the amount of phycocyanin in Sample 1 in mg where A620 = 0.193 and A650 = 0.095, taking into account the dilution factor of 100 ul, and the total volume of extract 45ml. Note your answer to 2 decimal places.Use your knowledge in analytical processes to systematically outline a protocol you will follow to process adulterated palm oil to gain qualitative and quantitative information spectroscopically about any added toxic. Explain also the basis for your protocol of choiceFor bulk crystalline sample which technique is best ? Give me handwritten answer with explaination?
- With the principles of GFC, which of the following statements is incorrect?a. For small molecules, their elution volume, Ve > VOb. For a very large molecule, its elution volume, Ve = Voc. Blue dextran is used to determine the void volume because it is too large and cannot get into the beads and therefore excluded from the gel.d. Low molecular weight molecules are freely accessible to the gel particles, and elute at a volume equal to the internal pore volume.Pls explain whyWhat effect will the following have on plate height (H). Make sure to explain your full and complete reasoning. Reducing the rate of sample injection.Using a spectrophotometric technique, the phosphorus content in a mineral will be prolonged. The procedure used is described below: 8.35 g of sample are dissolved and treated so that all phosphorus is converted to the blue orthophosphate complex and made up to volume with distilled water end of 100 ml. The transmission of the resulting solution is 30.6%. If the orthophosphate standard solution of sodium, which is treated in the same way, and which has a final concentration of 2.467x10-4 M, gave a transmittance of 20.5%, calculate the phosphorus content in the driven sample in ppm Na3PO4.