18:99 eM.Lon:3IaCl)orepotentials in which the standard potential for thereduction of water in base2 H₂O(l) + 2e → H₂(g) + 2 OH(aq)is assigned an E° value of 0.000 V. How would thestandard potential values on this new scale differ fromthose in Appendix 6?*18.99. Clinical Chemistry The concentration of Nations in redblood cells (11 mM) and in the surrounding plasma (140mM) are quite different. Calculate the potential differenceacross the cell membrane as a result of this concentrationgradient at 37°C.*18.100. Waterline Corrosion The photo in Figure P18.100 shows aphenomenon known as waterline corrosion. Assuming theoxidizing agent in the corrosion process is O2, propose areason why metal pilings such as this one tend to corrodethe most at the waterline and corrode less at heights aboveand below the waterline.FICURE D19 100MacBook Pro

The unequal separation of ions across a membrane will lead to the generation of a potential…

Answered: Clinical Chemistry The concentration of…

Biochemistry

6th Edition

ISBN:9781305577206

Author:Reginald H. Garrett, Charles M. Grisham

Publisher:Reginald H. Garrett, Charles M. Grisham

Chapter24: Lipid Biosynthesis

Section: Chapter Questions

Problem 13P

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Using the Nernst equation, calculate the equilibrium potential for Ca2 and for C1 from the following sets of data: a. Given [ Ca2+ ]0=1mM,[ Ca2+ ]i=100nM, find Eca2+ b. Given [ Cl- ]0=110mM,[ Cl- ]i=100mM, find Ecl
Pharmaceuticals When a medicine is administered orally, the concentration of the drug in the patient's circulation after t minutes is given by C(t) = 0.06t – 0.00021, where Osls 240 and the concentration is measured in mg/L. When does the highest serum concentration occur, and what is that maximum serum concentration?
Carbonic anhydrase of erythrocytes (Mr 30,000) has one of the highest turnover numbers known. It catalyzes the reversible hydration of CO₂. H₂O + CO₂ 2 H₂CO3 This is an important process in the transport of CO₂ from the tissues to the lungs. If 5 µg of pure carbonic anhydrase catalyzes the hydration of 0.35 g of CO₂ in 1 min at 37 °C at Vmax, what is the turnover number (kcat) of carbonic anhydrase? Kcat 2.0466 ×107 Incorrect min-1
SHOW COMPLETE SOLUTION 1. An electrochemical cell consist of 0.2715 Ibs of MnO2, and 0.2524 Ibs of PbO2. A current flow through a 1.1 ohm resistor of electrochemical cell for 45 mins. The reaction takes place at 400k and the total volume of the solution is 504.9 cm^3. Use the standard reduction cell potential table for MnO2 and PbO2: concentration of Mn2+ (2.81 M) and PbO2 (0.95 M) Cell Potential E=0.48 V current when it passes through a 1.1 ohm resistor = 0.44 ampere Determine the following: a. quantity of electricity/charge, Q b. Energy consumed in Joules c. Power in Kilowatts
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Find AG and AS for the experiment with Urea Standard State/when it melts AG: Mass of Urea (in grams) = 3.64 g Final volume of solution in graduated cylinder = 6.2 mL T= 298.15 K K = [(NH2)2CO]eq R = 0.008314 kJ/mol K AG = -RT In K [(NH2)2CO] = mol of (NH2)2CO/L of solution AS: AG(KJ/mol) = AH(kJ/mol) - TAS(kJ/mol K – times it by 1000) T= 298.15 K AG = AS

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Clinical Chemistry The concentration of Nations in red blood cells (11 mM) and in the surrounding plasma (140 mM) are quite different. Calculate the potential difference across the cell membrane as a result of this concentration gradient at 37°C.