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Classify the substances CaCl2, CuSO4, NH3, C2H5OH according to the strongest solute-solvent interaction that will occur between the given substances and water during dissolution from the following choices.
Ion-ion forcesDipole-dipole forcesIon-dipole forcesLondon dispersion forces
How many milliliters of 0.200 M NaOH would be neutralized by the HCl produced after 60 minutes? After 90 minutes? After 120 minutes?
Find the pH and fraction of dissociation of a 0.100 M solution of the weak acid HA with Ka= 1.00 x 10-5.
A solution is 0.034M in Na2SO4 and 0.035M in Na2CrO4. Solid Pb(NO3)2 is added without changing the volume of the solution.
What is the boiling point of acetone at an elevation where the external pressure is 323 torr?
calculate the number of microstates, W, that have this energy. Make sketches of these microstates. Calculate the corresponding entropy for each state.
Describe the reaction as endothermic or exothermic, and reversible or irreversible. B) A reaction has Horxn = 5.0 kJ/mol and a forward activation energy, Ea = 55 kJ/mol. What is the activation energy for the reverse reaction?
calculate the difference in mass that is hold by a 500.0mL flask at a temperature of 0.0°C from that at temperature of 20.0 °C? (you can assume the volume of the sample at 0.0 °C temperature =volume of the sample at 20.0°C)
If 275 g of liquid water at 100.°C and 475 g of water at 30.0°C are mixed in an insulated container, what is the final temperature?
Obtain expressions for the following partial derivatives for a diatomic ideal gas, assuming that its translational, rotational, and vibrational motions all behave classically.
What is the Kc for the following equilibrium CO2+H2=CO+H2O if CO=0.24M, H2O=0.38m, CO2=0.30M and H2O=3.3*10-2M
A buffer solution is prepared by mixing enough acetic acid and potassium acetate to give 500ml of a solution that is 0.500 M acetic acid and 0.500 M potassium acetate. What is the pH of this buffer
Colbalt monoxide CoO, the blue color in ceramics glazes, is prepared by decomposing cobalt (II,III) oxide at 950degree celsius.
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