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The half-cell, Tl | Tl+(1 mol L-1), is connected to a Pt | H+ | H2(1 atm) half-cell in which the concentration of H+ is unknown. The measured cell voltage is 0.0841 V and the Pt | H2 | H+ half-cell is the cathode. Standard reduction potentials are given on the next page. (a) Draw a diagram of the electrochemical cell, labeling all electrodes and solutions. (b) What is the pH in the Pt | H+ | H2 half-cell? (c) What is the value of the equilibrium constant for the reaction occurring in this cell?
Consider an ideal gas which is allowed to expand slowly under constant temperature conditions. Derive an expression for the heat change for such a process, explaining any key stages in the derivation.
Provide the name of the major alkene product that results when (2S,3S)-2-bromo-3-methylpentane is treated with sodium methoxide in methanol.
Dibutyl ether and 1 -butene can be formed as by products in this reaction. explain how they are removed by sulfuric acid.
Calculate the potential delivered by a voltaic cell operating by the following reaction if all of the dissolved species have a concentration of 0.035 and the pressure of H2 (g) is 1.00 atm.
Calculate the mass of CuS produced and the concentration of H+ ion produced by bubbling H2S into 1.00 L of 0.10 M CuCl2 (aq) solution. The net ionic equation is:
gold bars are plated from an aqueous solution of gold chloride (AuCl3) by using a current of 50 Amperes. With this current, how long would it take to plate out a 1 pound bar of gold worth almost $ 25,000? 453.59 grams weigh a pound.
Consider the reversible Carnot cycle shown below with 1 mol of an ideal gas with CV = 3/2R as the working substance. The initial isothermal expansion occurs at the hot reservoir temperature of Thot = 400°C from an initial volume of 3.0L (Va) to a ..
What is the boiling point of a solution of 0.25g of a nonvolatile solute (molar mass 85 g/mol) dissolved in 12g Benzene. Kbp for benzene = 2.53 (oC/m), Normal boiling point 80.10 oC.
Calculate the pH pf a solution prepared by mixing 500 ml of 0.245 M Sodium Acetate with 250 ml 0.1 HCl.
What minimum mass of succimer in milligrams is needed to bind all of the lead in a patient's bloodstream. Assume that patient blood lead levels are 0.530 mg/L , that total blood volume is 5.0 L , and that 1 mol of succimer binds 1 mol of lead.
water consistent with this oversimplified approach? Explain your answer ( note that there is a threshold temperature below which this approach will have a significant error)
A solution of 1.138g of naproxen in 25g benzene has an osmotic pressure of 4.00 atm at 20 C. The density of benzene is 0.8787g/mL. Assume the density of the solution equals the density of pure benzene. What is the molar mass of haproxen
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