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A sample consisting of 1.00 mol of perfect gas atoms, for which Cv,m = 5/2R, initially at P1 =1.00atm and T1= 300k, is heated reversibly to 400K at constant volume. Calculate the final pressure, delta-U, q and W.
the rate constant for a particular second-order reaction 0.47 m-1s-1 the initial concentration of reactant 0.25 moll
Using the values from Appendix C, calculate the value of change H degrees for each of the following reactions
1. an empty drum weighs 1.035 kg and when filled with benzene it weighs 5.418kg.nbspnbsp if the density of benzene is
The volume occupied by 1000. kilograms of the metal at 25 degrees Celsius. If 13.5 grams of aluminum were dissolved in an excess of concentrated HCl what volume of hydrogen gas would be released at STP? Assume the ideal gas law and that the vapor ..
Enzyme can react with only a single substrate. Enzyme has a cofactor that promotes the catalytic activity
the hall process for the production of aluminum involves the reaction of aluminum oxide with elemental carbon to give
calculate the average bond enthalpy for the carbon-carbon bonds in C6H6, comment on your answer in comparison to the estimated values for a single C-C bond (348 kJ/mol) and a double C=C bond (1842 kJ/mol)
The mass of silica needed to produce one- 325mg of aspirin tablet. the formulae is C4H6O3 + C7H6O3 --> C9H8O4 + C2H4O2
Which of the following rate law best illustrates the kinetics of the reaction between hydrochloric acid and sodium thiosulfate
A student carried out a recrystallization and obtained a 105% yield of material with a broad melting point. The material was warmed gently resulting in a recalculated yield of 87% and a sharper melting point. Briefly explain these observations.
Given that vinegar is 5% acetic acid by weight, estimate the percentage of vinegar in the foods. Assume that vinegar is 1.05 g/ml.
How much heat is evolved when 265 g of ammonia gas condenses to a liquid at its boiling point
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