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You have a system with a movable piston that is isolated. The reaction inside the system is under adiabatic conditions. When the reaction (the burning of butane in oxygen) is started, the distance the piston traverses is 30.00 cm at 1.000 atm of pressure, the diameter of the piston is 8.000 cm. If you take 15.00 mg of butane and a stoichiometric amount of oxygen, what is the work efficiency of this system; that is the percent of the energy produced that is used for work? The heats of formation of the C4H10, CO2(g), and H2O(g) are ?126.00 kJ/mol, ?393.50 kJ/mol, and ?241.80 kJ/mole, respectively. The conversion factor to change atmL to joules is 101.3250274 J/atmL.
Calculate the conditional formation constant Kf' for the formation of an EDTA complex with copper(II) at a pH of 5.00, if log Kf = 18.80. Show Work.
A particular reactant decomposes with a half-life of 133 s when its initial concentration is 0.271 M. The same reactant decomposes with a half-life of 219 s when its initial concentration is 0.165 M.
Combustion reactions are exothermic. The heat of reaction for the combustion of butane, C4H10, is 687.8 kcal/mol. What is the heat of combustion for butane in kcal/gram?
A 28.7 g sample of ethylene glycol, a car radiator coolant, loses 676 J of heat. What was the initial temperature of ethylene glycol if the final temperature is 32.5°C (c of ethylene glycol = 2.42 J/gK)? =°C
If a 10.00mL sample of unknown concentration of HF is titrated with 28.94mL of 0.1040M NaOH, what is the concentration of HF
Draw a line bond formula for acrylonitrile and labe on your drawing the followng: a) Sigma bonds
How many moles of HC2H3O2 are diluted to 59.37 mL? B)What is the Molarity of the diluted solution? What is the concentration after the dilution of the following?
A 0.50 mol/L solution of codeine has a pOH of 3.05. What is the Kb value of codeine?
A 5.95-g sample of AgNO3 is reacted with BaCl2 according to the equation to give 3.21 g of AgCl. What is the percent yield of AgCl? AgNO3(aq) + BaCl2(aq) --> AgCl(s) + Ba(NO3)2(aq)
Chlorine reacts with potassium iodide. What would the color of the resulting solution be. What is the oxidation half-reaction for this step.
A reaction in which and react to form products is zero order in , one-half order in , and second order in .By what factor does the reaction rate change if is doubled
Show that the proton condition for a NH4Cl solution is a linear combination of the mass balance equations and the charge balance equation.
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