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- 3. Bacteria that have a composition of CSH702N. Determine the BOD for 30mg/L, following the following formula: CsH,02N + 02 CO2+ H20+ NH3 NH3 + 02 = N03+ H +H20 concontrntion in nartI have always enjoyed eating tuna fish. Unfortunately, a study of the mercury content of canned tuna in 2010 found that chunk white tuna contains 0.6 ppm Hg and chunk light tuna contains 0.14 ppm. (S. L. Gerstenberger, A. Martinson, and J. L. Kramer, Environ. Toxicol. Chem. 2010, 29, 237.) The U.S. Environmental Protection Agency recommends no more than 0.1 mg Hg/kg body weight per day. I weigh 68 kg. How often may I eat a can containing 6 ounces (1 lb 5 16 oz) of chunk white tuna so that I do not average more than 0.1 mg Hg/kg body weight per day? If I switch to chunk light tuna, how often may I eat one can?5. Anesthetic gases used in surgery are known to bind to the hemoglobin molecule in red blood cells. The diagram below illustrates O2 binding curves of normal human HbA in the presence of the anesthetic gas dichloromethane (DCM). O UNTREATED 100 a DCM 23 Tor • DCM 50 Torr x DCM 100 Torr Symbols: o, 0 Torr DCM; O, 23 Torr DCM A, 50 Torr DCM x, 100 Torr DCM. 80 40 (1 Torr = 1 mm Hg.) The solutions buffered to pH 7.4. 20 were 0.5 1.0 1.5 2.0 log po2 % OXYGENATION
- Catalase combines two hydrogen peroxide molecules (H2O2 + H2O2) to make two molecules of water. A gas also forms. What is the gas?The acidic nature of chyme is neutralized by ___________ . potassium hydroxide sodium hydroxide bicarbonates vinegarAll antioxidants ________. a. prevent other molecules from being oxidized. b. are coenzymes c. balance charge d. deoxidize free radicals
- 7. If a patient normally has a 12 g/dL Hb, cyanosis will likely appear when A. 10 g/dL Hb is saturated with oxygen B. 9 g/dL Hb is saturated with oxygen C. 8 g/dL Hb is saturated with oxygen D. 7 g/dL Hb is saturated with oxygen5. Anesthetic gases used in surgery are known to bind to the hemoglobin molecule in red blood cells. The diagram below illustrates O2 binding curves of normal human HbA in the presence of the anesthetic gas dichloromethane (DCM). O UNTREATED 100 a Dсм 23 Torr Symbols: в Dсм 50 Torr x DCM I00 Torr o, 0 Torr DCM; O, 23 Torr DCM A, 50 Torr DCM x, 100 Torr DCM. 80 60 40 (1 Torr = 1 mm Hg.) 20 The solutions were buffered to pH 7.4. 0.5 1.0 1.5 2.0 log p02 (a) (* Hill plots. Label the axes and indicate on both the plot above and the Hill plot where the value of the dissociation equilibrium constant Ka for O2 binding is defined for 0 and 100 Torr of dichloromethane For the curves at 0 and 100 Torr of dichloromethane, draw their equivalent in the form of Kd Hb(O2)n Hb + nO2 % OXYGENATION5. Anesthetic gases used in surgery are known to bind to the hemoglobin molecule in red blood cells. The diagram below illustrates O2 binding curves of normal human HbA in the presence of the anesthetic gas dichloromethane (DCM). O UNTREATED 100 Symbols: a Dсм 23 Torr • DCM 50 Torr x DCM I00 Torr o, 0 Torr DCM; О, 23 Torr DСМ Д, 50 Torr DСМ x, 100 Torr DCM. 80 60 40 (1 Torr = 1 mm Hg.) 20 The solutions were buffered to pH 7.4. 0.5 1.0 1.5 2.0 log p02 For the curves at 0 and 100 Torr of dichloromethane, draw their equivalent in the form of (a) (* Hill plots. Label the axes and indicate on both the plot above and the Hill plot where the value of the dissociation equilibrium constant Kd for O2 binding is defined for 0 and 100 Torr of dichloromethane Kd Hb(O2)n nO2 Hb + Be sure to label the axes, indicate the units on both axes, and make the Hill plot so that the values of Kd are equivalent to those on the saturation plot above. Indicate whether cooperativity, as indicated by the Hill…
- 6. CONSTANT VOLUME CALORIMETRY Using a bomb calorimeter, 1.0 g of benzene (CcH6), a component of gasoline, was combusted to determine its energy content.2000 mL of water was used. a. Arrange the following steps of the CVC technique in chronological order. Connect the ignition wire to the sample using a cotton string. Cover the oxygen vessel bottom. Fill the calorimeter with 2000 mL of water. Fill the reaction vessel with oxygen. Ignite and analyze the results. Place the crucible into the oxygen vessel top. Place the vessel atop the calorimeter dock and insert. Put 1.0g of benzene into the crucible using a pipette. Weigh the crucible and tare.7. Make a data table for the experiments/trials. It should include reaction conditions volumes of reagents used, O2 volume produced (with correct sig figs), and observation Tor all trials. If you have made a figure displaying your results, please attach that as well | temperature Vol of Hio Vol of polato un time Oz generated 1. o'c 5ml 2ml 2. 2. 1 mL 2. 8.5 mb 37°C 4 1,8 mb 8. Analyzing your results: a. What effect does your variable have on the activity of the potato enżyme? Use numerical data to describe the how the activity changes. b. Why do you think you saw this effect? c. What specifically happened to the enzyme to cause this effect? What conclusions can you draw from the change or lack of change to the activity of the potato enzyme? d. Summarize your conclusions including numerical data on the board for your system.1. Bomb calorimeters are used to determine the heat of combustion of various samples like fuels. Benzoic acid (C6H5COOH) is typically used as a standard in calibrating bomb calorimeters . In a typical reaction 1.20 g of benzoic acid was burned in excess oxygen gas and releases 31.723 kJ of energy . The temperature of the water bath of the calorimeter is 24.6 degrees Celsius . A. Calculate heat B. Calculate change in internal energy C. Calculate work D. What is its change in enthalpy
