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For a certain reaction a change in standard H= -75.6kj also change in standard S= -214 J/K. If n = 2, Compute standard E cell for the reaction at 25 degrees C.
a. how would you prepare 100ml of 0.5m naoh? calculate the mass of naoh needed and describe the procedure and glassware
What are the concentrations of OH- and H in a 0.00054 M solution of Ba(OH)2 at 25 °C? Assume complete dissociation.
Assuming complete dissociation and ideal behavior, what would be the boiling point of an aqueous solution of MgCl2 that is 8.0% MgCl2 by mass? For H2O
Write the balanced molecular, ionic and net ionic equations for the reaction between magnesium and cobalt(II) sulfate. (b) What is oxidized and what is reduced in the reaction?
Using the values from appendix C in the text calculate the Entropy and Enthalpy changes for the decomposition of ammonia into nitrogen and hydrogen at 298K and 1.0atm. Then determine the temperature at which the gases are in equilibrium with each ..
What is the stoichiometric relationship between IO3- and I2? b. What is the stoichiometric relationship between I2 and S2O3 2-? c.
A 167-L cylinder of helium gas has a pressure of 74.9 atm at 296 K. If 426.2 g of helium are removed from the tank, what is the new pressure of the gas
A reaction has a first order rate constant of 4.31x10-5 s-1 at 25oC and 0.00111 s-1 at 65oC. What is the value of the rate constant at 43oC
Use the Rydberg equation to predict the wavelength of the electromagnetic radiation emitted for following electron transitions for the hydrogen atom (rounded-off to the nearest 0.1nm).
Which isomer of 1-bromo-3-isopropylcyclohexane reacts faster when refluxed with potassium tert-butoxide, the cis isomer or the trans isomer? Explain your reasoning and draw the structure of the expected product from the faster reacting isomer.
If the fluid inside a tree is about 0.3 M more concentrated in solute than the groundwater that bathes the roots, how high will a column of fluid rise in the tree at 24°C. Assume that the density of the fluid is 1.0 g/cm3. (The density of mercury ..
If 17.5 moles of an ideal gas occupies 0.0455 cubic meters at 70.5°C, what is the pressure of the gas?
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