5. Consider the following data for the decomposition reaction H2O2(aq) H₂O(g) + 102(9) concentration time of H2O2 (sec) (mol L-1) log of concentration 0 2.32 .37 300 1.86 .27 600 1.49 .17 1200 .98 -.01 1800 .62 -.21 3000 .25 -.60 (1) Prepare a graph of the time and concentra- tion data. (2) Prepare a graph of log[H2O2] vs. time. (3) Determine the equation for the line in (2).
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- PROBLEM 12.27 (a) Use Table 12.5 to calculate the osmotic pressure of the hemodi- alysis solution at 25 °C. (b) If the osmotic pressure of blood at 25 °C is 7.70 atm, what is the direction of solvent movement across the semipermeable mem brane in dialysis? (Blood to dialysis solution or dialysis solution to blood)What is the expected condition for a patient with following ABG values of pH 7.5, pco2-46mmHg, HCO--30 m Eq/dL and k+-3.4 mEq/dL Metabolic alkolosis Metabolic acidosis Respiratory alkolosis Respiratory acidosisCalculate the pH of a blood plasma sample with a total CO₂ concentration of 25.7 mM and bicarbonate concentration of 24.4 mM. The relevant pK, of carbonic acid is 6.1. Enter the answer with three significant figures. pH =
- Consider the titration of 50.00 mL of 0.160 M NH3 with 0.200 M HCl. Calculate the pH at the following volumes of the titrant: VT = 0.00 (Initial Stage) VT = 20.00 VT = 30.00 VT = 40.00 (Equivalence Point Stage) VT = 45.00 Kb = 1.76 x 10-5What mass of Co(s) may be deposited from an aqueous CoCl, solution if a current of 2.50 A is applied to the solution for 365 s? (e*rea(Co2*/Co) = -0.277 V, F = 96485 Cimol) 0.557 g 0.279 g O 1.01 g O 1.11 g 0.0772 gNone
- Determine the concentration of [Ser] at 75s at T=335K time (s) [Ser] at T=335 0.150 5 0.143 20 0.120 40 0.090 90 0.015 0.005 0.047 M 0.038 М 0.088 МFrom the Henderson-Hasselbach equation, calculate the ratio of dihydrogen phosphate (H2PO4-) and monohydrogen phosphate (HPO4-2) components required to produce buffer solution with1. pH 6.22. pH 7.23. pH 8.2Inorganic compounds of metallic mercury are presumed from metabolic studies to distribute uniformly after inhalation or ingestion with 8% going to the liver and 92% to the total body. Biological clearance of mercury in each of these tissues occurs by two compartments, 95% with a biological half-life of 40 days and the remaining 5% with a biological half-life of 10,000 days. For an intake of 1 MBq of 203Hg (Tr= 46.61 d). Determine the following 1. Total number of transformations in the Liver. 2. Total number of transformations in the total body.
- In 2011, researchers showed that hypochlorous acid (HClO) generated by white blood cells kills bacteria. Calculate the percent dissociation of (a) 0.40 M HClO; (b) 0.035 M HClO (Ka = 2.9x10-8).An e cylinder of oxygen with conversion factor 0.28 psi, is one quarter full and running at 1.5 lpm. How long will the tank last if it is changed at 400 psi? (Assume the tank is full at 2200 psi).In vitro experiments are conducted at pH = 7.4 to simulate physiological conditions. A phosphate buffer system is often used. H₂PO → H₂PO¹²¯ +H+ pK₁ = 7.2 a. What must be the ratio of the concentrations of HPO to H₂POд ions? b. What mass of NaH2PO4 must be added to 500.0 mL of 0.10 M Na₂HPO4 (aq) in the preparation of the buffered solution?