During the Antacids as Buffers simulation, it was found that calcium carbonate was slightly less effective than some other antacids, but it has the added benefit of being a source of dietary calcium. Would this be considered true or false?
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During the Antacids as Buffers simulation, it was found that calcium carbonate was slightly less effective than some other antacids, but it has the added benefit of being a source of dietary calcium. Would this be considered true or false?
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- Angiotensin Converting Enzyme (ACE) inhibitors cause blood vessels to relax, thereby reducing blood pressure. Although Captopril is part of the group of antihypertensive drugs widely used as ACE inhibitors, new research is constantly being carried out with the aim of selecting compounds that are more kinetically advantageous than Captopril. Therefore, a BioPharma employee selected some prototypes and performed kinetic tests, finding the result shown in the figure below. Based on the statement and the graphic above, mark the incorrect alternative. A) It is a graph for determining kinetic parameters according to Lineweaver-Burk. In that case, the coefficient a B) Comparing the prototypes with the reference drug, Prototype 1 has a higher Vmax value. C) Comparing the prototypes with the reference drug, Prototype 2 has a lower Vmax value. D) Captopril has a Vmax of approximately 0.730 and Km of approximately 0.669. E) The two prototypes have Km values lower than those of Captopril and,…When comparing the structures of acetate buffer and tris-maleate buffer, acetate buffer works on fumarase activity but tris-maleate buffer does not?The glass electrode used in commercial pH meters gives an electrical response proportional to the concentration of hydrogen ion. To convert these responses to a pH reading, the electrode must be calibrated against standard solutions of known H+ concentration. Determine the weight in grams of sodium dihydrogen phosphate (NaH2PO4 · H2O; FW 138) and disodium hydrogen phosphate (Na2HPO4 ; FW 142) needed to prepare 1 L of a standard buffer at pH 7.00 with a total phosphate concentration of 0.100 M . See Problem 24 for the pKa values of phosphoric acid.
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- How much caffeine can be extracted using 50.0ml of DCM if a tea bag contains 15 grams of tea leaves with 0.9% of caffeine? And has undergone solid-liquid extraction with 100ml of distilled water followed by liquid-liquid extraction using DCM. The solubility of caffeine requires 15 ml of water and 2.0ml of DCM for 40.0mg.Using conversion factors, solve each of the following clinical problems:a. The physician has ordered 1.0 g of tetracycline to be given every six hours to a patient. If your stock on hand is 500-mg tablets, how many will you need for one day’s treatment?b. An intramuscular medication is given at 5.00 mg / kg of body weight. What is the dose for a 180-lb patient?c. A physician has ordered 0.50 mg of atropine, intramuscularly. If atropine were available as 0.10 mg /mL of solution, how many milliliters would you need to give?d. During surgery, a patient receives 5.0 pt of plasma. How many milliliters of plasma were given?The concentration of hydrolyzed nitrocefin at each time point for an experiment is given below. Time (min) Concentration (μM) 0.5 6.01 1 11.78 1.5 17.6 2 23.51 2.5 29.58 3 35.31 3.5 39.73 4 44.5 4.5 48.18 5 50.05 5.5 52.72 6 54.01 6.5 55.06 7 55.65 7.5 56.39 8 56.74 8.5 57.49 9 58.03 9.5 58.61 10 58.69 Make a graph that plots the concentration of hydrolyzed nitrocefin (in μM) against time (in seconds) using Excel, R, SPSS or other computable software. Where appropriate, include a trendline that shows the linear range on your graph. Include the equations for the trendlines and the R2 value on the graph. Your graph should also include a title and appropriate titles for the x- and y-axes, with units included where appropriate. To determine the initial velocity of a possible insert in this experiment, you must determine what the linear range is in these data (see note below). Based on your graph, which time points represent a suitable linear…