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Molten carbonate fuel cells fueled with H2 convert as much as 60% of the free energy released by the formation of water from H2 and O2 into electrical energy. Determine the quantity of electrical energy obtained from converting 1 mole of H2 into H20(l) in such a fuel cell.
The result of doubling the inital concentration of x will be to? a) shroten the half-life of the reaction b) increase the rate of constant of the reaction c) decrease the rate constant of the reaction D) Shorten the time taken to reach equilibrium..
In the reaction BaCO3 + 2HNO3 -> Ba(NO3)2+CO2+H2O, what mass of Ba(NO3)2 can be formed by combining 55g BaCO3 and 26g HNO3?
Choose the answer which lists ionic compounds NaCl, MgS, KCl, and K2S in order of increasing lattice energy (smallest lattice energy listed first).
Brine is a heavily salted solution used for pickeling. What tests could be used to identify the ions present? What should uoi see
A pentapeptide was found to contain the amino acids Phe, Gly, Met, Ala, and Ser. N-Terminal analysis yielded the PTH derivative of alanine. Partial hydrolysis of the pentapeptide yielded the dipeptides
Volume in liters of 0.625 M manganese(II) sulfate that contains 92.4 g of solute. (Do not enter the units of your answer). Calculate to 2 decimal places and do not include units.
A balloon is filled to a volume of 7.0 102 mL at a temperature of 12.0°C. The balloon is then cooled at constant pressure to a temperature of 1.00 multiplied by 102 K. What is the final volume of the balloon?
calculate delta H1 and delta H2 and heat capacities of the calorimeter plus salt solution.
calculate the specific heat of a substance if a 35 gram sample absorbs 28 joules as the tempature is raised from 292 kelvin to 313 kelvin.
How is the characteristic of line spectrum determined in an element? Does each element produces a particular color?
A cube has a volume of 8.0cm (to the 3rd power) and a mass of 21.6 grams. The density of the cube, in grams per cubic centimeter, is best expressed as
In an oxidation-reduction reaction, it required 25.6 ml of a 0.65 M potassium permanganate solution to reach the equivalence point with 15.0 mL of an iron(II) sulfate solution.
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