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The first order rate constant for a reaction at 700 oC is 8.98e-03 s-1. If the activation energy for the reaction is 340 kJ/mol, what is the rate constant at 800 oC?
The hydrolysis of sucrose to fructose is first order in sucrose with a half-life of 3.40e+03 s at some temperature.
What fraction of sucrose, expressed as a percent, would hydrolyze in 2.80 hours?
How long (in hours) would it take to hydrolyze 83.0% of the sucrose?
How many moles of H+ ions are present in the following aqueous solutions? (a) 1.1 L of 0.48 M hydrobromic acid (b) 47 mL of 2.4 M hydroiodic acid (c) 477 mL of 0.27 M nitric acid
Based on the pKa of benzoic acid and the pKa of HCl, what do you hypothesize will happen in terms of reaction equilibrium. The equilibrium will favor the starting materials (sodium benzoate and HCl) because HCl has a lower pKa
The energy difference of 3.8 kJ/mol between gauche and anti butane corresponds to an equilibrium constant, Keq, of approximately 1.9. Calculate the percentage of each conformer at equilibrium.
Determine the mL KOH needed at the equivalence point and the ph upon the addition of this volume of KOH.
Cobalt was used as an internal standard to analyze a sample of titanium with atomic absorption spectroscopy. A mixture was prepared by combining a 5.50 mL Ti solution of unknown concentration with 2.00 mL of a 13.4 g/mL solution of Co
Draw a sketch, roughly to scale, of the potential energy diagram for a system in which Ea= +80kJ and ?H= -20kJ. Label the axes, reactants
calculate the weight of sodium hypochlorite, NaOCl.
Using an unmanned rocket to visit the space station requires 85.2 trillion BTU of energy. The best fuel for the mission will have the highest ratio of energy to volume.
This was allowed to react under reflux for an hour and then the products seperated. I wrote out a mechanism before lab and ended up predicting 4-chlorobenzoic acid and 4-chlorophenol as my final products.
Determine the concentration of CO32? ions in a 0.18 M H2CO3 solution. Carbonic acid is a diprotic acid whose Ka1 = 4.3 x 10?7 and Ka2 = 5.6 x 10?11
sodium hydrogen carbonate (NaHCO3) is mixed with 10.0 grams of sodium carbonate in enough de-ionized water to give a total volume of 250.0 ml. What is the pH of the resulting solution
calculate the solubility of Ca(OH)2 in a 0.469M Cacl2 solution at 31 Degrees, given the Ksp of Ca(OH)2 is 4.96*10^-6. give answer in milli molar units.
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