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Mix 5.32 g of solid magnesium sulfate with 105.24 g of water inside a calorimeter. As the magnesium sulfate dissolves, the temperature of the solution rises from 24.5°C to 30.1°C. Calculate the amount of energy in kJ that was transferred into the surroundings through heating. Assume that the specific heat capacity of the solution is 4.18 J/g·°C.
let's pretend a certain sterling silver ring has a mass of 31.25g. silver has 93%. determine the mass of silver found in the ring.
calculate the approximate concentration of the solution in mol/kg and determine the volume change of the ballon when it ascends from 1 atm pressure to 240 torr pressure ?
Compute the difference in ΔG's if three tons (metric) are compressed specific grav .882 from 1 atm to 5000 atm if benzene is compressible
The equilibrium internuclear distance of deuterium iodide, DI, is 160.4 pm, where 1 pm = 1x10-12m. The relevant atomic masses are: mD = 2 amu and mI = 127 amu
determine the freezing point of this solution If 18.0 grams of a nonelectrolyte that has molar mass = 44.2 g/mol are combined with 110.0 grams of the solvent,?
a bottle of phosphoric acid is labeled 85 h3po4 by mass density 1.689 gcm3. calculate the molality h3po4 in the
Upon taking the IR spectra of decanedioyl chloride and nylon 6,10, which of the 2 molecules would you expect to have a higher C=O stretching frequency and why
the freezing point of benzene is 5.5oc. what is the freezing point depression of a solution of 5.00 g naphthalene c10h8
what volume of 3m sulphuric acid is required to neutralize all of the c7h5nao3 and the excess sodium hydroxide present
An electric field should exist inside a conductor that carries a current. Explain how is that possible in view of the fact that in electrostatics we concluded that the electric field must be zero inside a conductor
Consider the following reaction at equilibrium. What affect will adding more SO3 have on the system?
Calculate the pH and pOH of a solution that has an OH- concentration of 3.1 x 10-2M. Calculate the pH and pOH of a solution that has H3O+ concentration of 1.3 x10-6M
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