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An uncoupler destroys the pH gradient, making it very small. If the pH on one side of a membrane is 7.3 and the pH on the other side is 6.9, what is the free energy change (DG) when protons are pumped across the membrane from the side of the membrane with low concentration to the side with high proton concenration at body temperature (37C)? The membrane potential is 0.06. Report your answer to the nearest kJ/mol.
The molar heat of reaction, H rxn, for the reaction of Ca(s) + 2H+(aq) Ca2+(aq) + H2(g)
Explain why the one product is formed preferentially overthe other. What reaction inductions can you change to favor the formation of the minor product
When 24 copper pennies are submerged in water, the pennies displace 8.26 cm3 of water. If the combined mass of the pennies is 73.86 g, what is the density of copper?
Calculate the volume in milliliters of a 0.30 M acetic acid solution that contains 0.0142 mol HC2H3O2.
A turbine operates adiabatically with super-heated steam entering at T1, and P1, with a mass flow-rate, m(dot). The exhaust pressure is P2 and the turbine efficiency is gamma
What observations might enable us to deduce that a chemical change has occured when dilute aqueous
For each of the following unbalanced equations calculate how many moles of the second reactant would be required to react completely with 0.413 mole of the first reactant. Al + H20SO4 ----> Al2(SO4)3 + 3H2
A compound has the empirical formula CH2O. When 0.0866 g is dissolved in 1.000 g of ether, the solution's boiling point is 36.5°C. Determine the molecular formula of this substance.
What weight of sodium acetate, NaCO2CH3, must be added to 500.0 mL of 0.500 M acetic acid HCO2CH3 to produce a buffer solution
What is the percent ionization of a 0.230 M hydrosulfuric acid (H2S(aq)) solution
how much of heat is gained by nickel when 500 g of nickel is warmed from 22.4 to 58.4C?
In the coal-gasification process, carbon monoxide is converted to carbon dioxide via the following reaction:
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