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The distribution of Na+ ions across a typical biological membrane is 10 mmol L-1 inside the cell and 140 mmol L-1 outside the cell. At equilibrium the concentrations are equal. What is the Gibbs energy difference across the membrane at 37°C? The difference in concentration must be sustained by coupling to reactions that have at least that difference of Gibbs energy
Calculate the pH at the equivalence point in the titration of 50 ml of 0.10 M methylamine with a 0.20 M HCl solution.
How many moles of oxygen are formed when 58.6 g of KNO3 decomposes according to the following reaction. The molar mass of KNO3 is 101.11 g/mol.
Rank the following reactions in terms of increasing ?E for the reaction system (from most negative to most positive). All occur at a constant pressure of 1.000 atm.
The decomposition reaction given below: 2 NH3(g) 1 N2(g) + 3 H2(g) is carried out in a closed reaction vessel. If the partial pressure of NH3(g) is decreasing at the rate of 131 torr/min, what is the rate of change of the total pressure in the ves..
HCL and heat to do the normal lab, if the solubities of reactant and product were reversed thou , how would the isomerization be followed. How would one knows when it is complete
A 255-mL flask contains pure helium at a pressure of 745 torr. A second flask with a volume of 455 mL contains pure argon at a pressure of 725 torr.If the two flasks are connected through a stopcock and the stopcock is opened, what is the partial ..
A water treatment plant has a flowrate of 40,000 m3/d. If the overflow rate is 25 m3/d/m2, determine the following:
A xenon fluoride compound can be prepared by heating a mixture of Xe and F2 to a high temperature in a pressure- proof container made of nickel.
Inside the container is an ideal gas at 1.00 , 20.0 , and 1.00 .What will the pressure inside the container become if the piston is moved to the 1.80 mark while the temperature of the gas is kept constant
If your absent minded lab partner spilled deionized water into your NaOH solution, diluting it, would the Ka value you determine for the solid weak acid be greater than
how long will it take for the concentration of A to decrease from 1.0 M to 0.25 M? If [Bo] = 1.5 M, what will be the concentration once [A] = 0.25 M?
If 3.420g of ^226 Ra (t 1/2= 1620 yrs) is separated from its decay products and placed in a sealed 1L vessel, what is the partial pressure (in torr) of helium after 45 days if the vessel is at 0 degrees C? The half life of Rn is = 3.82 days
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