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A 4.50-g sample of LIL at 25.oC dissolves in 25.0 mL of water also at 25.0C. The final equilibrium temperature of the resulting solution is 60.8C. What is the enthalp of solution of LICL expressed in kilojoules per mole?
Calculate empirical formula of this compound & molecular formula and calculate the molality of solution of sulfuric acid?
A gas at 89 degrees celcius occupies a volume of 0.67 L. At what kelvin temperature will the volume increase to 1.12 L. ?
Provide structures consistent with the following molecular formulae and spectral data, and assign spectral peaks. Write your structures and tables on a sheet of paper.
Calculate the molarity of a solution of glycerol made by dissolving 53.000 mL glycerol at 15 'C in enough water to make 270.00 mL of solution.
What happens if student forgets to rinse the buret with a small portion of EDTA solution. (Buret contains water droplets from washing.) If this incorrect concentration of EDTAis used to calculate the ppm CaCO3
Define Ideal gas law, Calculate the free energy of mixing when 1 mole of liquid A is mixed with 4 moles of liquid B at 25 degrees C to form an ideal solution. What is the change in chemical potential of component A?
In a saturated solution of lead (II) fluoride the concentration of lead was measured to be .0021 M. What is the value of Ksp for PbF2?
Finding Kc from Products' Moles, Volume and Percent Reacted, The following reaction occurs at 1600 deg. C. Calculate the equilibrium constant Kc for the reaction.
A 25.0 mL sample of 0.150 M nitrous acid is titrated with a 0.150 M NaOH solution. What is the pH at the equivalence point? The Ka of nitrous acid is 4.50 x 10-4.
If at 25 degrees celcius the partial pressure of oxygen in the iar diffusing through its cathode is 0.22atm, what is the cell potential (Ecell
Determine the functional form of Phi(t) and the frequency of a pendulum bob whose mass is m and is attached to a massess rod of length l. Assume that the bob oscillates in the limit of small oscillations.
nonbonding domains, polarity, intermolecular attractive forces, and which IMAF is the most important
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