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Write a balanced half-reaction for the reduction of hydrogen peroxide to water in an acidic solution.
a. 2H2O2(l) + 2e- --> 2 H2O (l) + O2(g)
b. H2O2(l) + 4H+(aq) + 2e- --> 2H2O(l) + H2(g)
c. H2O2 (l) + 2H+(aq) + 4e- --> 2H2(g) + O2(g)
d. H2O2(l) + 2H+(aq) + 2e- --> 2H2O(l)
e. 2 H2O2(l) ---> 2 H2O(l) + O2(g)
A student performs an extraction using water and methylene chloride. Which is the top layer and which is
Using standard enthalpies of formation from Appendix 2A, calculate the standard reaction enthalpy for the following reaction, the final step in the production of nitric acid
How many moles of Bi atoms are needed to combine with 1.58 mol of O atoms to make Bismuth Oxide, Bi2O3
A concentrated sulfuric acid solution is 65.0% H2SO4 by mass and has a density of 1.55 g/mL at 20°C. What is the mass of 8.00 L of the concentrated sulfuric acid solution?
If there's a mixture of O2 and N2, and the mol of N2 is 0.605 mol, and fraction (f) of O2 is 0.251; then, what is the mol of O2?
A flask containins a mixture of He(g) and Ne(g). The total pressure of gas in the flask is 950 torr. The mixture is 65.0% Ne(g) by mass. What is the partial pressure of He(g) in the flask
Use the Rydberg equation (1 / wavelength = (1/n(smallest)^2 - 1/n(largest)^2) to calculate the wavelength of this transition in nanometers (nm) and to three significant figures.
How much work is done in kilojoules as a result of the reaction shown. 2.5 atm with a volume of 2L --> 2.5 atm with a volume of 3L
How many milliliters of 0.50 M HCl solution are needed to titrate 100 mL of 0.20 M NaF to the equivalence point
given the balanced equation representing a reacction2c2h67o24co26h2odetermine the total number of moles of oxygen that
An air stream's humidity is increased by combining it with a stream of water as shown below (hr stands for relative humidity). The water evaporates and increases the moisture content of the air stream. Determine the mass flow rate of stream B
For a cyclic process, q/t=delta s, calculate delta s when 2 mol of water vapor at 200C at 1atm undergoes a reversible cyclic process for which q=-145 j/mol
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