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An electrochemical cell consists of a Pt|H+(aq,1.00 M)|H2(g) cathode connected to a Pt|H+(aq)|H2(g) anode in which the H+ concentration is that of a buffer consisting of a weak acid, HA(0.180 M), mixed with its conjugate base, A-(0.177 M). The measured cell voltage is E°cell = 0.320 V at 25 °C, with PH2 = 1.00 atm at both electrodes. Calculate the pH in the buffer solution and the Ka of the weak acid.
pH =
Ka =
On the basis of this data, draw the structures of compounds A to E. Show your work for full credit.
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The acid dissociation constants listed in the majority standard reference texts for carbonic acid actually apply to dissolve CO2. For a CO2 partial pressure of 8.7×10-4 bar in the atmosphere, explain what is the pH of water in equilibrium with the..
Electromagnetic radiation has an energy of 926 J. The wavelength of this radiation is 856 nm. How many photons are required to generate this energy?
What is the concentration of an NaOH solution for which 11.25 mL is needed to titrate 1.53 g of benzoic acid?
How the urinary system works with other systems to maintain homeostasis and how the body works to maintain homeostasis.
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how many grams of CaCl 2 would be required to produce a 3.5 M(molar) solution with a volume of 2.0 L?
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