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For a certain process at 27°C, DG = +210.6 kJ and DH = -168.2 kJ. What is the entropy change for this process at this temperature? Express your answer in the form, DS = ____ J/K.
An experiment was performed to determine the Ksp of Ca(OH)_2_. A solution containing 2.00 x ^-2 M Ca(NO3)_2_ was saturated with Ca(OH)_2_ and filtered. Two samples of the saturated solution were titrated with 5.021x10^-2 M HCI, in order to determi..
A 20 mg sample of zinc is heated at 10 K min-1, and the peak on the DSC trace has an area of 0.371 W K. Calculate the latent heat of melting of zinc (in kJ mol-1)?
Methane and oxygen react to form carbon dioxide and water. What mass of water is formed if 3.2 g of methane react with 12.8 g of oxygen to produce 8.8 g of carbon dioxide?
supposed 175 mmol of NH3 and 131 mmol of O2 are added to an empty flask how mych NH3 will be in the flask at equilibrium.
Calculate the boiling point of this water-ethylene glycol mixture. (The density of ethylene glycol is 1.11 g/mL.)
Calculate the maximum work available from 57.0 g of aluminum in the following cell when the cell potential is 1.15 V. Note that O2 is reduced to H2O. Al(s) | Al3+(aq) || H+(aq) | O2(g) | Pt
The concentration fo certain sodium hydroxide solution was determined phthalate(abbreviated as KHP). KHP is an acid with one acidic hydrogen and a molar mass of 204.22 g/mol.
A proton in a linear accelerator has a de Broglie wavelength of 143 pm. What is the speed of the proton?
A student follows the procedure for his experiment and burn a peanut. The peanut weighed 0.780 g before combustion and 0.054 g after combustion. The temperature change of an aluminum can be filled with 200 mL of water was 15.3 degree Celsius. (Den..
Water with an alkalinity of 2.00 X 10^-3 equivalents/L has a pH of 7.00. Calculate [CO2], [HCO3-], [CO3^2-], and [OH-].
Using the values for the resonance energies of benzene and naphthalene given above, explain why Diels-Alder reactions of anthracene take place at the center ring, not one of the end rings.
What are the resonance structures and intermediates in the formation of bromoacetanilide from the reaction of acetanilide and bromine liquid with acetic acid
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