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Suppose a mixture of 4.0 moles of O2 and 2.0 moles of H2 is placed in a sealed evacuated container made of a perfect insulating material at 25 degrees Celsius. The mixture is ignited with a spark also it reacts to form liquid water. Determine the final temperature of the water.
A student prepeares a cold pack by dissolving 30 grams of ammonium nitrate in 100 g of water at 20 degrees celcius to 0 degrees celcius, what is the calculated experimental value for ΔH per mole of ammonium nitrate
At a certain temperature, the equilibrium mixture of the reaction PCl5 (g) ? PCl3 + Cl2 (g) has PCl5 = 1.50 atm. PCl3 = 0.10 atm and PCl2 = 7.50 atm Calculate the value of Kp at this temperature
At 48 degrees C, dinitrogen tetroxide decomposes to a nitrogen dioxide with a rate constant of 1.5x10^7 S^-1. If the activation energy is 55 kJ/mol, determine the rate constant at 26 degree C
What is the theoretical yield of bismuth when 346 g of Bi2O3 reacts with excess carbon as shown below?
oxidation of gaseous CIF by F2 yields liquid CIF3. Use the following thermochemical equation to calculate delta H reaction for the production of CIF3
a good yield of photosynthesis for agricultural crops in bright sunlight is 2000.kg of carbohydrate e.g. sucrose per
What is the molar mass of cholesterol if 0.00105 mol has a mass of 0.106g
calculate the velocity of electrons emitted from molecules in which the binding energies are 10ev, 100ev, and 500ev
The fatty acid esters of glycerol in #1 undergo SAPONIFICATION when treated with aqueous NaOH to form soap. From the structure of fatty acid esters of glycerol that you wrote earlier, write the structure of the corresponding soap.
Analysis of an unknown substance showed that it has a moderate melting point and is a good conductor of heat and electricity in the solid phase. Which of the following substance would have those characteristics
Draw a two-dimensional conformational energy landscape (free energy on y-axis, conformational coordinate on x-axis) to show how a protein may become kinetically (not thermodynamically) ‘trapped' in a misfolded conformation.
245.0 nm ultraviolet light strikes a metal plate and ejects electrons having kinetic energy E = 1.79 eV. Calculate the binding energy of an electron at the metal surface.
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