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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?
A gamma ray has a frequency of 3.5 x 1019Hz. Determine the wavelength of this radiation in nm and the energy of a photon of this radiation.
Nevertheless, in order to prevent tooth decay, F - ions are added to drinking water at a concentration of 1 mg of F - ion per L of water. How many kilograms of sodium fluoride would be needed to treat a 7.11 107 gal reservoir
list the following bonds in order of increasing ionic character: the lithium-to-fluorine bond in LiF, the potassium-to-oxygen bond in K2O, the nitrogen-to-nitrogen bond in N2, the sulfur-to-oxygen bond in SO2, the chlorine-to-fluorine bond in ClF3..
If 5.00 mL of HCl require 4.73 mL of 0.9581 M NaOH to just consume the HCl, what is the concentration of the HCl.
Suppose 18.92mL of Na2S2O3 solution were necessary to titrate the iodine formed from 20.95mL of a 0.0100M KIO3 solution and excess KI, Explain what is the molarity of the Na2S2O3 solution
The equilibrium constant Kp is measured (at an unspecified temperature) to be 0.66 for the reaction:
Consider the reaction shown below. PbCO3(s) PbO(s) + CO2(g) Calculate the equilibrium pressure of CO2 in the system at the following temperatures.
What is the identity of the second major peak in the chromatogram and what is the third. What is your basis for these assignments
How many unpaired electrons will there be in a high-spin octahedral complex of Fe(II)
What is the ratio of the enantiomeric products? b) What name is given to a mixture of enantiomers present in the ratio determined in part (a)?
When elemental carbon is burned in the open atmosphere, with plenty of oxygen gas present, the product is carbon dioxide.
suppose that 22.4 liters of air at stp is used to burn 3.50 g of carbon to form co2 and that the gaseous product is
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