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calculate the activation energy for diffusion for a system where the diffusion coefficient doubles its value from 700k to 1200k. R=8.314J/molk.
Lipitor blocks production of chlosterl in the liver. In addition to this reduction of the serum level of cholsterol, HDL acts to remove LDL from the bloodstream. How might this occur?
There are two naturally occurring isotopes of bromine. 79Br has a mass of 78.9183 amu. 81Br has a mass of 80.9163 amu.
if 40.0 kJ of energy is absorbed by 500.0 g of water at 10.0 degrees celcius what is the final temperature of water?
If 3.93 g of sodium borohydride contains 2.5 × 10e23 H atoms, how many moles of H are present in 33 cm3 of sodium borohydride (of density 1.074 g/cm3)?
a sample of gas at 77 degreees celsius and 1.03 atm occupies a volume of 2.02L. What volume would this gas occupy at 107 degreees celcius and 0.789 atm.
Draw a series of titration curves for the titration of a strong base with a strong acid where the concentration of the acid is 10 -1 , 10 -2 , and
A container (8.65-L ) holds two gases mixture at 31 °C. The partial pressures of gas X and gas Y, respectively, are 0.206 atm and 0.867 atm. If 0.200 mol a third gas is added with no change in temperature or volume determine the total pressure be..
When numbers are very small or very large, it is convenient to either express the value in scientific notation and/or by using a prefix with the unit.
The equilibrium constant at 25°C is 8.9 × 10-12. One hundred grams of magnesium hydroxide is added to 1.00 L of water and equilibrium is established.
Given the following data table of average bond enthalpies, estimate the ΔH^rxn for the reactions 2H2+O2-- 2H2O. What is the hybridization of xenon in each of your Lewis resonance structures?
What is the volume of the container needed to store 0.8 moles of argon gas at 5.3 atm and 227°C.
Lead-210 has a half-life of 20.4 years. This isotope decays by beta particle emissio, Calculate the mass defect and binding energy
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