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Problem- A cell consists of a gold wire and a saturated calomel electrode (S.C.E.) in a 0.140 M AuNO3 solution at 25 °C. The gold wire is connected to the positive end of a potentiometer, and the S.C.E. is connected to the negative end of the potentiometer.
What is the half-reaction for the Au electrode?
Ignoring activities, if the standard reduction potential for the above reaction is E0 = 1.69 V, what is potential of the gold electrode? (in V)
The reduction potential for the saturated calomel electrode is E = 0.241 V. What is the cell voltage? (in V)
Write solution with complete explanation of required steps
Use the pKa cata to help you predict the products of the reactions. Use curved arrows to show electron flow. Predict whether the equilibrium lies to the left or to the right and calculate the equilibrium constant for the reaction.
Write an equation, clearly showing the stereochemistry of the starting material and the product, for the reaction of (S)-1-bromo-2-methylbutane with sodium iodide in acetone.
The percentage natural abundances of 39k and 41k are 93.2581% and 6.7302%, respectively. find out the isotopic mass of 41k.?
Which of the following electron transitions corresponds to emission of the longest wavelength light
what is the pressure in atmospheres of the gas inside the container connected to an open-end mercury-filled manometer
If a solution has a pH = 7.0 and Cd2+ is added to it (the ksp of Cd(OH)2 = 2.5 x 10-14) what molar concentration of cadmium ion is needed for precipitation to occur
A 500ml portion of a solution at pH=13 will just barely dissolve 3.2x10-4 moles of calcium hydroxide. What is the Ksp of calcium hydroxide
base catalyzed reaction of vanillin with acetic anhydride? They produce slightly different products, but how and why
Starting with the supernatant collected after the initial crystallization, suggest a procedure to isolate and purify the R-(+)-phenylethylamine enantiomer.
Automobile airbags contain solid sodium azide, NaN3, that reacts to produce nitrogen gas when heated, thus inflating the bag. 2NaN3(s) ------> 2Na(s) + 3N2(g) Calculate the value of w (work) for the following system if 14.7 g of NaN3 reacts comple..
Given the following two solutions: 0.200 M HC2H3O2(aq) with pKa = 4.76 ; 0.200M NaOH(aq) A mixture is made using 50.0 mL of the HC2H3O2 and 25.0 mL of the NaOH. What is its pH?
A solution contains 25 mmol of H3PO4 and 10. mmol of NaH2PO4. What volume of 2.0 M NaOH must be added to reach the second equivalence point of the titration of the H3PO4 with NaOH?
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