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Molten carbonate fuel cells fueled with H2 convert as much as 60% of the free energy relased by the formation of water from H2 and O2 into eletrical energy. Determine the quantity of electrical energy obtained from converting 1 mole of H2 into H2O(l) in such a fuel cell.
25.0 ml of a 0.2450 M NH4Cl solution is added to 55.5ml of 0.1655 M FeCl3. What is H concentration of chloride ion in the final solution.
If 17.2 mL of 0.800 M HCl solution are needed to neutralize 5.00 mL of a household ammonia solution, what is the molar concentration of the ammonia.
what are the ground state electron configuration of the elements in period 2 of this alternate reality?
use maxwell distribution of speeds to estimate the fraction of CO2 molecules at 300K that have speeds in the range 200 to 250 m/s.
Consider the reaction CaCN2 + 3 H2O → CaCO3 + 2 NH3 . How much CaCO3 is produced if 47.5 moles NH3 are produced
Consider the reaction: 2 K(s) + 2 H2O(l) -> 2 KOH(aq) + H2(g), DH = ? The heat released when 24.9g of K reacts with excess water is 124 kJ. Determine the enthalpy change, DH, for the above equation as written
A solution of 53.6 g of glycerin in 133.7g of ethanol has a vapor pressure of 113 torr at 313K. Calculate the vapor pressure of pure ethanol assuming that glycerin is a non-volatile, non electrolyte solute in ethanol.
Draw all stereoisomers having molecular formula C6H12 that contain one double bond and give the IUPAC name for each compound.
Determine What is the final concentration and calculate what is the Ksp of this salt at temperature of 25 degrees Celsius?
calculate the heat transferred, Q when 51.0 ml of 2M NaOH solution and 50.0 ml of 2M HCl are mixed. Assume the final volume of the reaction mixture is 101.0 ml, its density is 104 g mL-1, and its heat capacity is 3.89 J g-1 deg-1
Draw the abbreviated structural formula of the products of the complete hydrolysis of lidocain.
Lime, CaO, is produced by reaction CaCO3(s) CaO(s) + CO2(g). What weight of CaO is obtained by the decomposition of 38.7g of CaCO3.
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