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Calculate the activation energy of a reaction whose rate constant is 4.22 x 10?4 s?¹ at 25°C and 4.54 x 10?4s?¹ at 45°C.
caffeine is a stimulant found in coffee and tea . a solution of caffeine in chloroform as a solvent has a concentration
how do you find delta change H° of gaseous HCl with the following information: 1) N2(g) + 3H2 (g) > 2NH3(g) delta changeH°(rxn) = -91.8 kj 2) N2(g) + 4H2 (g) +Cl2 (g) > 2NH4Cl(s) detla changeH°(rxn)= -628.8 kj 3) NH3 (g) +HCl (g) >NH4Cl(s) delta c..
Draw three non-equivalent Lewis structures for the nitrous N2O molecule. Show all non-zero formal charges. Which structure(s) is (are) the most important
What is the pressure (mmHg) if 800 kPa is increased in volume from 1.75L to 3.0L and the temperature is increased from 65degrees Celsius to 100degrees Celsius
the R enantiomer and 19.0% of the S enantiomer, what is the enantiomeric excess of the mixture?
Sodium chloride has a solubility of 35.7g/100mL water. If you have 350mL of water and you add 115g of sodium chloride to it and mix well
A nuclear power plant operating at 40.0% efficiency produces 1132 MW of usable power in 1.00 year and consumes 1.16×10^6 g of uranium-235. What is the energy in joules released by the fission of a single uranium-235 atom. Answer in Joules/atom.
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An electron is confined to a one-dimensional box of length L. It falls from the second energy level to the ground state, and releases a photon with a wavelength of 322 nm. What is the length of the box?
What is the silver ion concentration for a saturated solution of Ag2CO3 if the Ksp for Ag2CO3 is 8.4 x 10^-12
A 0.30 M solution of sucrose (C12H22O11) at 37oC has approximately the same osmotic pressure as blood. What is the osmotic pressure of blood?
A 12.0 g sample of solic NH4Cl is heated in a 5.00 L container to a high temperature. At equilibrium, the pressure of NH3 (g) is 1.22 atm. What is the value of Kp for the reaction
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