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Question- What is the difference between the hydrogen-oxygen fuel cell and the proton exchange membrane fuel cell?
I need expert help to solve the above question. Show each and every step.
The subsequent reaction is carried out in a 2.5 L reaction vessel. 2HgO 2Hg + O2 At the beginning of the reaction, 14.7 mol of HgO are present. After 12 min, 11.1 mol of HgO remain. Explain what is the rate of the reaction in M/min
how much energy is necessary to completely vaporize 75.0g of ice at 0 degrees celsius? the molar heat of fusion for
Silicon has a FCC structure with unit cell edge of 5.43A and 4 atoms per init cell. a) how many silicon atoms are there in 1cm3 of material b) suppose you dope that 1 cm3 sample of silicon with 1ppm of phosphorus that will increase the conductivit..
Given a pure sample that is known to be either pure benzoic acid or 2-naphthol, describe a procedure you might use to determine the identity of the sample, assuming spectroscopy is not available.
Calculate the heat required to raise the temperature of 1.5 L of a liquid with a density 0.75 g/mL and a specific heat of 2.2 J/g/K
Question- Calculate the value of Keq at 298 K for each of the following reactions
Will a precipitate of Cu(OH)2 (Ksp = 1.6x10-19) form when 10.0 mL of 0.010 M NaOH is added to 1.00 L of a 0.010 M CuCl2 solution
The mass of an electron is 9.11\times 10^{-31}~\rm kg. If the de Broglie wavelength for an electron in a hydrogen atom is 3.31\times 10^{-10}~\rm m, how fast is the electron moving relative to the speed of light? The speed of light is 3.00\times10..
Give the voltaic cell shorthand description for this reaction as a voltaic cell.Write anode and cathode under the correct portions of the shorthand description. Show the two half reactions and identify the correct reaction as oxidation or reductio..
a power company converts 40 percent of the heating value of the oil it uses into electric power. homeowners can buy
What is the pH of a sodium acetate solution prepared by adding 0.820 grams of sodium acetate to 100.0 ml of water at 25.0 oC? The Ka at 25.0 oC for acetic acid is 1.8 × 10-5.
how many moles of no2 gas can be produced from 45.5 g of o2 gas in the following reaction? show your work in the answer
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