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The reaction of coal with water at high temperatures produces synthesis gas, which is a mixture of carbon monoxide and hydrogen. Use the bond energies in the table below to estimate the enthalpy of the reaction C(g) + H2O(g) ? CO(g) + H2(g) Energy(kj/mol) c-o = 358 c=o = 770 c-triple bond-o = 1070 o-h = 465 h-h = 435
At what ph would you carry out an electrophoresis experiement if you wanted to seperate a mixture of lysine
Use of fossil fuels - Should we be burning the raw materials for medicine and polymers? Where will we be in 50 years on this issue?
How do I calculate the product distribution calculations of the three peaks? Or the product ratios? The first peak was at 0.600, second at 0.95. Those are the retention times
An amount of 0.500 grams of NH4Cl was added to 50.0 mL of the solution in Problem 1 above. Use the Keq calculated from problem 1 to calculate the pH of this solution.
Use the appropriate standard reduction potentials in your book to calculate the value of K at 25C for the reaction NiO2(s)+2Cl-(aq)+4H+(aq) arrow Cl2(g)+Ni2+(aq)+H2O(l)
The nitrate concentration in an industrial effluent is determined using a nitrate ion selective electrode. Standards and samples are diluted 20-fold with 0.100 K2SO4 to maintain consatnt ionic strength.
Why was potassium carbonate used in the distillation of 2-methyl-e-hexanol? Use the curved arrow notation to deaw a mechanism to show
Calculate the final temperature of 33 ml of ethanol initially at 20 degrees Celsius upon absorption of 541 J of heat. (density of ethanol =0.789 g/ml)?
Calculate the work (in kJ) when 2.20 moles of methane react with excess oxygen at 384 K: CH4(g) + 2O2(g) ? CO2(g) + 2H2O(l) Hint
If you have 340.0 mL of water at 25.00 °C and add 120.0 mL of water at 95.00 °C, what is the final temperature of the mixture. Use 1.00 g/mL as the density of water.
dissolve CaCl2 in water to make a mixture that is 34.0% calcium chloride by mass. If the total mass of the mixture is 222.3 g, what masses of CaCl2 and water should be used?
Solutions of sodium thiosulfate are used to dissolve unexposed AgBr ( Ksp= 5.0E-13) in the developing process for black-and-white film. What mass of AgBr can dissolve in 1.00L of 0.500M Na2S2O3?
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