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The steam reforming of methane is widely used in industry to make hydrogen, as given in the following reaction:CH4(g) + H2O(g) ? CO(g) + 3H2(g) a) Calculate the (approximate) enthalpy change, ?H, from the relevant bond dissociation energies. b) What would be the predicted sign (i.e., positive, negative, or zero) of ?S? Describe why. c) At what temperatures is the above reaction expected to be spontaneous? Describe why.
Propose structures for aromatic hydrocarbons that meet the following descriptions:
When 9.00 grams of Al react with an excess of H3PO4, 30.0 grams of ALPO4 are produced.What is the percentage yeild of this reaction.
what is green chemistry. how does it relate to heating A mixture of sodium carbonate and sodium bicarbonate (lab)
The molecular weight of ibuprofen was determined by mass spectroscopy to be 206.287 g/mol. What is the molecular formula for ibuprofen?
Draw the two possible products of the reaction between benzaldehyde and ethylpropylketone. Do not draw the products of the double-condensation.
100 moles of C4H10 undergoes complete combustion in excess air. First, show the degree of freedom analysis for this process. Then calculate the composition (mole fractions) of the stack gas on a wet basis for the following three cases: (1) theoret..
Correct the refractive index and boiling point to 20 degrees Celsius and 1 atmosphere and calculate the density of the unknown?
Decide how many of the molecules below can also be both cis and trans ring fused by building models
Calculate w (in kJ) when 597 g iron (III) oxide (MM = 159.7 g/mol) reacts with excess carbon to produce carbon dioxide gas at 459 K:
At a certain temperature and pressure 4.2 L of N2 reacts with 6.3 L of O2. If all the N2 and O2 are consumed, what volume of N2O3, at the same temperature and pressure, will be produced?
What is the concentration of CH3COOH (Ka = 1.8x10-5) in 50.0 mL of a 0.0187 M CH3COOH solution
What mass of solid PbCl2(278.10 g/mol) is formed when 200 mL of .125 M Pb2+
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