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Gas A2 reacts with gas B2 to form gas AB at a constant temperature. The bond energy of AB is much greater than that of either reactant. What can be said about the sign of ΔH, ΔSsurr, and ΔS?
Explain how potential energy changes for the process.
Explain how random kinetic energy changes during the process.
Label each of the following reactions as exothermic or endothermic ("exo" or "endo"), and according to whether work is done on or by the system, or no work is done at all ("on", "by" or "none")
What is the maximum concentration of Mg2+ ion that can remain dissolved in a solution that contains 0.7719 M NH3 and 0.3031 M NH4Cl?
Which of the following pairs of molecules is listed in order of decreasing net dipole moment (from more polar molecule to less polar molecule)
Calculate the pH at the points in the titration of 40.00 mL of 0.425 M NH3 for the reaction below. NH3(aq) + HNO3 ? NH4+(aq) + NO3?(aq) For NH3, Kb = 1.8x10-5.
How long (in hours) would this current have to be applied to plate out 8.90 g of nickel?
A 1.0 L sample of a gaseous compound of hydrogen, carbon, and nitrogen gave upon combustion 2.0 L of CO2, 3.5 L of H2O vapor, and 0.50 L of N2 (with all gas volumes measured at the same T and P). What is the empirical formula of the compound?
Calculate the pressures, P, in atmospheres at which the mean free path, l, of a hydrogen molecule will be 2.00 ?m, 2.00 mm, and 2.00 m at 20.0 °C. The diameter of a H2 molecule is 270 pm
The overall formation constant for Cu(NH3)42+ is 1.1x1013 at 25oC. What is [Cu2+], in moles per litre, at equilibrium when 8.3 g Cu(NO3)2 is dissolved in 0.500 L of 1.00 mol/L NH3(aq)? Assume that there is no volume change when the Cu(NO3)2 is add..
What is the pressure in atmospheres inside a container of gas connected to a mercury-filled open-end manometer when the level in the arm connected to the container is 28.0cm higher than the level in the arm open to the atmosphere and the atmospher..
Molecules which are polar overall exhibit a property called a dipole moment. Which of the following possesses polar bonds but has no dipole moment
Draw the type of allylic carbons present in the following (draw structure) a. 2,3,3-trimethyl-1-butene b. 1-methylcyclohexane
Determine which half-cell will undergo oxidation and which will undergo reduction, identify anode and cathode, and calculate the voltage for the cell.
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