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One mole of an ideal gas is contained in a cylinder with a movable piston. The temperature is constant at 77°C. Weights are removed suddenly from the piston to give the following sequence of three pressures. (a) P1 = 5.00 atm (initial state) (b) P2 = 2.19 atm (c) P3 = 1.00 atm (final state) What is thet total work (in joules) in going from the initial to the final state by the way of the preceeding two steps? What would be the total work if the process were carried out reversibly? (in J)
Calculate the pH and the concentrations of all species present H3O+, F-, HF, Cl-, OH- in a solution that contains 0.10 M HF Ka = 3.5*10^-4 and 0.10 M HCl.
After losing the electron, how many protons will Na have in its nucleus? Sodium (Na), atomic number 11, has a tendency to lose an electron in the presence of chlorine
calculate the molar solubility of calcium carbonate in 0.050 molar calcium chloride and ksp for calcium chloride is 3.8X10^-9.
Codeine, C18H21NO3, a commonly prescribed painkiller, is a weak base. A saturated aqueous solution contains 1.00 g codeine in 120 mL of solution and has a pH = 9.8. What is the Kb of codeine?
Explain why Î"G can only be used to determine the spontaneity of a reaction. Be very detailed in your answer.
The mixture was analyzed spectrophotometrically and found to be 1.84*10^-3 M in I3-. Calculate the molarity of I3- in the original sample
If a solution is made by adding 83 grams of sodium hyroxide to 750 ml of water what is the percent by mass of sodium hydroxide in this solutions ?
Consider the chemical species IF5 and IF4+
A molecule of chlorine dioxide (ClO2) at 25oC has a velocity of 306 m/s. What is the kinetic energy in joules of the molecule at this temperature?
Draw the skeletal structure for major organic product produced when the arene given reacts with 2 equivalents each of Na and HOCH3
Draw the structure of an alkane or cycloalkane that has five carbon atoms and only secondary hydrogen atoms.
A canister is filled with 310 of ice and 100. of liquid water, both at 0 . The canister is placed in an oven until all the has boiled off and the canister is empty. How much energy in calories was absorbed?
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