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(a)Write the half-reaction that occurs at a hydrogen electrode in acidic aqueous solution when it serves as the cathode of a voltaic cell.
(b)What is standard about the standard hydrogen electrode?
(c) What is the role of the platinum foil in a standard hydrogen electrode?
State the equation which shows the strong electrolyte Ca(NO3)2 dissolving in water comprising states of matter (s, g, l, aq) and correct coefficients
the mass of iron produced by the reaction of 7.00 kg of fe2o3 and 3.00 kg of co is 3.55 kg. what is the percent yield?
Benzene (C6H6) is a trace component of gasoline. What is the mole ratio of benzene to n-octane in the vapor above a solution of 35.0% benzene and 65.0% n-octane by mass at 25 degrees C
Explain what is the pH of a 0.1M KAl (SO4)2 solution. Same. For 0.1M NaC2H3O2, 0.1M NH4Cl, 0.1M ZnCl2, 0.1MNa2HPO4.
Explain why does Weight have the most effect on Jump as well as why does Gender have the least effect on jump
The column has N theoretical plates and the unadjusted relative retention is ? = 1.001. Calculate the number of theoretical plates N in the column of length L. The observed resolution is 1.81 after 18 cycles
a reaction that contributes to the depletion of ozone in the stratosphere is the direct reaction O(g)+O3(g)-->2O2(g) at 298K the rate constant is 4.8*10^5M-1s-1 use delta H values from appendix C to estimate
A student measures the volue of acetone delivered by a 5 mLvolumetric pipette several times and obtains volumes of 4.98, 4.95, 4.86, 4.91 and 4.90 mL. The average volume delivered by the pipette is 4.92 mL. What is the deviation of the first measu..
Historically, the solid residue that is left after the Dichloromethane -or methylene chloride (CH2Cl2 )solution is evaporated has a lower melting point that its literature value, due to impurities.
What is the solubility of lead fluoride in a solution of 0.050 M of sodium fluoride?
you have the following aqueous solutionsa 3.25 m cacl2b 3.25 m magnesium bromidec 3.25 m na3po4d 3.35 m sucrosewhich
The mixture was stirred, causing all of the sample to dissolve. The excess HCl in the solution required 38.4 mL of 0.164 M NaOH for complete neutralization in a titration. What was the molecular formula of the white substance
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