Which of the following components of Km is largest in magnitude? k2 O k-1 O k1 O k-2
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- To which product, following products are related (a) Blue revolution (b) whiterevolution (c) Green revolutionA molecule into which a radioisotope has been incorporated can be used as an ____________. a. compound c. salt b. tracer d. acidA student carries out the following experiments and records the following observations. 1. A few drops of a solution of KOH (aq) is added to a solution of Fe(NO3)3 (aq). A red gelatinous solid forms immediately upon addition. 2. A few drops of a solution of KOH (aq) is added to a solution of NaNO3 (aq). No changes are observed. 3. A few drops of a solution of KOH (aq) is added to a solution that could contain Fe3+(aq) and/or Na+(aq) ions (the solution could contain both ions, just one ion, or neither ions). A red gelatinous solid forms immediately upon addition. Select all of the answers that are consistent with the data from those 3 experiments. Group of answer choices The unknown contains Fe3+(aq) and Na+(aq) The unknown contains Fe3+(aq) It is not possible to determine the presence of Na+(aq) from this experiment The unknown contains neither Fe3+(aq) or Na+(aq)
- I missed a couple of my labs due to covid and am struggling to teach myself how to do serial dilution, dilution, dilution factors, and colony forming units per ml of original stock. I thought I was understanding everything until it was time for me to take the practice quiz and I realized that I understood nothing.Calculate the amount of phycocyanin in Sample 1 in mg where A620=0.204 and A650=0.061, taking into account the dilution factor as per question 6, and the total volume of extract as per question 4. Note your answer to 2 decimal places Sample 1 Total Extract Volume (ml) is 45 Dilution factor is 100 A280 is 1.07 A620 is 0.221 A650 is 00.97 Specific Absorbance Ratio (SAR) A620/A280 is 0.206A species of bacteria has a doubling time of 24 hours. After incubating the initial population for one week, the final population was 6,400 cells. What was the initial population of that bacteria? Show all work. Equations: Nt = No x 2n Final concentration = (initial concentration)/(total dilution factor) Total dilution factor = (individual dilution factor)# of serial dilutions
- The following titration was performed by placing a 10.00 mL solution in an Erlenmeyer flask and titrating it with 0.1250 M titrant. What is the pKa of the species being titrated? 5.0 10.2 8.0 3.8 2.1Which of these two, Olive oil and beef tallow would be the identity of the sample in the picture:You obtained the following raw data when setting up a Bradford standard curve: BSA (mg/ml) Absorbancy 595nm 0 0.225 1 0.310 2 0.420 3 0.510 4 0.610 5 0.720 6 0.810 7 0.915 8 0.950 9 0.980 10 0.990 Set up a standard curve. What would the quality of the line-fit (R2 value) be if you do not exclude experimental outliers? (Give you answer to 4 decimal places) Answer Skip Exit
- Which of the following is NOT a REDOX reaction? 2Al(s) + 3CuSO4(aq) → Al2(SO4)3(aq) + 3Cu(s) Cl2(aq) + 2KBr(aq) → Br2(aq) + 2KCl(aq) AgNO3(aq) + KCl(aq) → AgCl(s) + KNO3(aq) Sn(s) + 2HCl(aq) → SnCl2(aq) + H2(g)The Ksp values of silver chromate Ag2CrO4 and silver iodate Ag(IO3) are given below. Ag2CrO4 Ag(IO3) Ksp 1.12 x 10-12 3.17 x 10-8 Based on these Ksp values, which of the following is true? Choose one option only. Options: a. In the solution consisting of 1.00 x10-4 M Ag+ and 5.00 x10-5 M CrO42-, Ag2CrO4 precipitate will form. b. In the solution consisting of 1.0 x10-4 M Ag+ and 1.0 x10-4 M IO3-, Ag(IO3) precipitate will form. c. In pure water, the solubility of Ag2CrO4 is lower than the solubility of Ag(IO3). d. In the solution consisting of 0.200 M CrO42- and 0.200 M IO3-, Ag2(CrO4) will precipitate first if we add Ag+ ions gradually into the above mixture.Your pharmacy has on hand Tetracycline 250 mg/5 mL liquid.You receive a prescription for Tetracycline syrup 500 mg qid for 7 days. How many total milliliters would you dispense? Your pharmacy has on hand Prednisone 5 mg tablets.You receive a prescription for Prednisone 5 mg ii tabs stat and qid x 1 day, then ii tabs tid x 2 days, then ii tabs bid x 2 days, then i tab tid x 3 days, then i tab bid x 3days, then i tab qd x 4 days How many tablets would you dispense for this prescription? How many days will the patient take this medication for? Your pharmacy has on hand Dilantin 100mg capsules.You receive a prescription for Dilantin 100 mg 1 cap po in the AM & PM, 200mg (2 caps) po at noon, and 300mg (3 caps) po at hs. Dispense a 30 day supply. (using the 100mg capsules you have in stock) How many capsules will you dispense? Your pharmacy has on hand Dakins Irrigation Solution 1 liter.You receive a prescription for Dakins Irrigation Solution Irrigate chest tube with 100 mL…
