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Calculate change in Gibbs free energy for the reaction CO(g) +1/2O2(g)-CO2(g) at 298.15 K. Calculate Change in Gibbs free energy reaction at 650 K assuming that enthalpy change in reaction is constant in the temperature interval of interest. What would you need to do if you could not make this assumption (explain,do not attempt a calculation)?
One plate was placed in a chamber containing methanol, and after developed it showed one spot with an Rf value of 0.97. The other plate was placed in a chamber containing hexane
calculate how many mL of 0.200 M NaOH (aq) would be needed to react with the malic acid sample from step c.
when deltaG=0; a system is at equilibrium. Use values for delta H standard and delta S standard to determind the temperature
Write the condensed structural formulas and names for all the constitutional isomers with the formula C4H9Br
an aqueous solution of a nonelectrolyte boils at 100.32c. what is its expected freezing
Calculate the mass of nitrogen dissolved at room temperature in an 80.0 {rm L} home aquarium. Assume a total pressure of 1.0 {rm atm} and a mole fraction for nitrogen of 0.78.
or the reaction H2(g)+CO2(g) H2O(g)+CO2(g) at 700C, Kc=.534. Calculate the number of moles of H2 that are present at equilibrium
One of the alkali metals reacts with oxygen to form a solid white substance. When this substance is dissolved in water, the solution gives a positive test for hydrogen peroxide, H2O2.
Imagine that your water heater has broken, but you want to take a bath. You fill your bathtub with 25 kgof room-temperature water (about 25c ). You figure that you can boil water on the stove and pour it into the bath to raise the temperature The ..
Commercially available concentrated sulfuric acid is 18.0 M H2SO4. Calculate the volume of concentrated sulfuric acid required to prepare 2.80 L of 0.275 M H2SO4 solution.
If 2.44 moles of Helium gas has a pressure of 2.4 atm at 343 K, what volume must the gas occupy.
Draw the Lewis structure of the major resonance form of the thiosulfate ion, S2O3 2-. Include all lone pairs of electrons. Include formal charges on atoms with charges.
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