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Calculate the rate constant of the reaction at 225 °c for a reaction that has rate constant of 8.1 8*10^-4 at 95 degree celsius activation energy of 87 kJ/mol.
What was the ?t for the metal c) how much heat flowed into the water d) taking the specific heat of water to be 4.18J/g°C, calculate the specific heat of the metal e) what is the approximate molar mass of the metal
What is the value of the equilibrium constant for Haber process at 298K if the equilibrium concentration are as follows:
In the reaction 2 C8H18 + 25 O2 ? 16 CO2 + 18 H2O, if the rate of change in the concentration of CO2, ?[CO2]/?t, equals 0.51M/s, what is the value of ?[O2]/?t, the rate of change in the concentration of O2
The probability that the annual peak will equal or exceed the median value in any single year. The average return period of the median value.
The pH at one half the equivalence point in an acid-base titration was found to be 5.73. What is the value of Ka for this unknown acid?
A sealed container holding 0.0255 L of an ideal gas at 0.999 atm and 67C is placed into a refrigerator and cooled to 45C with no change in volume. Calculate the final pressure of the gas.
How many moles of O2 will be produced if 4.83 moles of CO2 react completely?
The reaction between nitric oxide (NO) and hydrogen is thought to proceed via the following mechanism. Do not make any assumptions about which step is rate determining
Thermodynamic Processes. a volume of 20 cu ft of air at pressure of 50 psig is heated and expanded to 30 cu ft and 40psig find the change in the energy of air in joules.
Europium crystallizes in a body-centered cubic lattice (the Eu atoms occupy only the lattice points).The density of Eu is 5.26 g/cm3. Calculate the unit cell edge length in pm.
Question- The Lyman series of spectral lines for hydrogen occurs in the non-visible regions of the electromagnetic spectrum. They arise from transitions from higher energy levels down to n=1. Calculate wavelength (nm) of the lowest energy spectral ..
If 25mL of 0.2 M H3PO4 solution is required to neutralize 60mL of a Ba(OH)2 solution then explain what is the molarity of the Ba(OH)2 solution
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