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When using a calorimeter to do detailed heat calculations, you must determine the heat capacity of the individual calorimeter you use as a calibration.
Calculate the enthalpy change for the reaction: given the following enthalpies of reaction.
How many kilojoules of heat are released when 27.0g of CO reacts completely with H2 to form CH3OH at constant pressure?
Is Iron Pyrite a mixture or compound? What about Salt Water? What about Silicon Dioxide? What about Sand?
Add 2 mL each of silver nitrate [AgNO3], lead nitrate [Pb(NO3)2] and mercury(I) nitrate[Hg(NO3)2] to the test tube. The chlorides formed are: AgCl, PbCl2, Hg2Cl
Consider the exothermic reaction 2NO(g) + Br2(g) 2NOBr(g). What can you do to the reaction mixture to produce more NOBr?
Why does cyclopentadiene dimerize so easily and rapidly to dicyclopentadiene? Please explain your answer.
Relate entropy and reaction spontaneity, Gibbs free energy and reaction spontaneity, and Gibbs free energy and the equilibrium constant of a reaction.
Calculate the heat of dissolution (q) of urea using the following formula: q = -s m? Where is the heat capacity assume the heat capacity.
What volume of dry carbon dioxide, measured at 25 C and 785 mm Hg, will result from the complete combustion of 2.50 g of pentane?
Use the values of ?Hof given below to calculate (in kJ) ?Horxn for the following reaction
Suppose that the enthalpy of some substance over a large temperature range can be expressed as a function of the temperature.
A real gas is found to have a molar volume that is 90% of the molar volume of an ideal gas at 298K and 3 atm pressure.
A sample of N2 gas occupies 2.40 L at 20oC. If the gas is in a container that can contract or expand at constant pressure, at what temperature.
Discuss the idea that the standard of living in society might be measured in units of kJ/person available in that society.
The density of octane is 0.7025 g/cm and the density of ethanol is 0.7893 g/cm . If burning octane in an automobile is 20% efficient (i.e., 20% of the energy.
What is the value of ? G when [H+]= 1.5 x 10^-8 M, [CH3NH3+]= [H+]= 1.5 x 10^-8 M, [CH3NH3+]= 5.5 x 10^-4 M, and [CH3NH2]= 0.120 M?
A quantity of 7.480g of an organic compound is dissolved in water to make 300.0 mL of solution.
Compare the amount of cooling experienced by an individual who drinks 400mL of water (0 degrees C) with the amount of cooling experienced.
Calculate the standard reaction enthalpy, entropy and free energy at 298K for the following reactions:
Two fuels available for automobile uses are ethanol (C2H5OH) and gasoline (assume it to be octane, C8H18).
An ideal gas described by T(initial)=300K,P(initial)=1 bar and V(i)=10 L is heated at constant volume until P=10 bar.
For all three of the equilibria in problem #1 predict (1) how Ke is affected by an decrease in temperature, (2) predict how the equilibrium will shift.
Given the thermodynamic data in the table below, calculate the equilibrium constant for the reaction:
Calculate the molar enthalpy (in kJ/mol NaOH) for the solution process NaOH(s)>>Na+(aq)+OH-(aq) .