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Problem- Hydrogen iodide decomposes when heated, forming H2(g) and I2(g). The rate law for this reaction is ?[HI]/?t = k[HI]2.
At 443degrees C, k= 30L/mol*min. If the initial HI(g) concetration is 3.5x10^-2mol/L what concentration of HI(g) will remain after 10 minutes ?
If possible just a brief explanation how you got the answer?
The vapor pressure of water at 20.0 °C is 17.5 mm Hg. If the pressure of a gas collected over water was measured to be 453.0 mm Hg. What is the pressure of the pure gas
Use Huckel molecular orbital theory to answer the following questions. Express energies as functions of the parameters α and β.
Calculate the approximate molarity of this solution from the volume, percent composition, and density.
A radioactive sample contains 1.30g of an isotope with a half-life of 3.5 days. What mass of the isotope will remain after 5.6 days? (Assume no excretion of the nuclide from the body.)
question describe in details how we can determine the acid dissociation constant ka for a week acid ha include the
Calculate the volume (in mL) of a 0.680 M KOH solution that should be added to 4.000 g of HEPES (MW=238.306 g/mol, pKa = 7.56)
In a coffee-cup calorimeter, 1.60 g of NH4NO3 is mixed with 77.0 g of water at an initial temperature of 25.00°C. After dissolution of the salt, the final temperature of the calorimeter contents is 23.47°C.
The standard enthalpy of atomization of an element is the energyrequired to convert 1 mole of an element in its most stable form at25 centigrade to 1 mole of monatomic gas. Given that the standardenthalpy of atomization for sodium is 108.4 kJ mol-..
A sample containing 2.20 moles of neon gas has a volume of 8.00 L. Assume that the pressure and the temperature remain constant. What is the new volume of gas in liters when a sample of 70.0 g neon is added to the neon gas already in the container..
Calculate the concentration of the hydronium ion and then the pH in a solution that is formed by combining 300mL of 0.10 M Ca(OH)2 with 300mL of 0.10 M H2SO4? (Ka2 = 1.2 x 10^-2 for sulfuric acid).
Water is flowing in a horizontal pipe (1 inch, schedule 40) with a velocity of 2 ft/s and a pressure of 10 psia. The water enters a second section of pipe that is 4 inch schedule 40. What is the pressure in the section of pipe if friction can be i..
Question- Tyrosine hydroxylase (TH) is an enzyme found in the nervous system. It hydroxylates tyrosine and initiates the synthesis of dopamine. It has been determined the Km of TH is smaller than the concentration of tyrosine in the CNS. This impl..
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