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Assume that the activation energy was measured for both the forward (Ea,f = 131 kJ/molrxn) and reverse (Ea,r = 175 kJ/molrxn) directions of a reversible reaction. What would be the activation energy for the reverse reaction in the presence of a catalyst that decreased the activation energy for the forward reaction to 107 kJ/molrxn?
Indicate the direction of polarity of each of the following covalent bonds by dragging the appropriate delta notation to each end of the bond.
Determine the stopping potential as a function of wavelength at 433.9, 404.7, 365.0, 312.5, 253.5 nm.
All the CO2 that enter waterbody is converted to CH2O. How much oxygen (moles/m^2) is required to oxidize it back to CO2?
How much energy is needed to convert 64.0 grams of ice at 0.00 degrees C to water at 75.0 degrees C
calcuate the number of moles of HCI and of NaOH present when mixing 50.0mL
A solution is initially 0.050M in acetate, CH3COO- (Kb = 5.6 x 10^-10). 10.0mL of 0.10 M HCl is added to 50.0mL of the acetate solution. The Ka for the conjugate weak acid of CH3CHOO- is 1.8 x 10^-5. Calculate the pH for this solution at equilibri..
Provide the newman projections across the C 2 -C 3 bonds for the major conformers after Drawing the zig-zag structures of all the isomers of 2,3-diaminopentane.
a polysaccharide of unknown structure was isolated subjected to exhaustive methylation and acid hydrolysed. analysis of
looking at altast transamination pathway what would be the cascade effect if the pirydoxyl amine phosphate has a
A maximum of 1.89 mg of AgCl will dissolve in 1.00 L of solution at 25.0 C. A maximum of 5.26 mg of AgCl will dissolve in 1.00 L of solution at 50.0 C. Use this information to calculate standard enthalpy change and standard free energy change for ..
To obtain the same antifreeze protection requires 76 g of propylene glycol to replace each 62 g of ethylene glycol. Calculate the mass of propylene glycol required to replace
The pH of a solution is 3.70. What is the (H+)? What are (OH-) and pOH. The Ka for Hypochlorus acid, HCIO, is 7.2 x 10-4 at 25 oC. What is pKa. Write the equation for the reaction to which Ka applies.
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