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The activation energy for a reaction is 37.6 kJ/ mol. The rate constant for the reaction is 5.4 x 10^3 at 45 degrees Celcius. Calculate the rate constant at 145 degrees celcius
The mass of a helium atom is 4.0026amu, and its average velocity at 25°C is say, using your GU-ID (Example G000abcde, yours for this problem is GU-ID G00071922, a.bcX 10^3m/s.
purified a new protein and find that it contains 0.154 percent Mn. Assuming that there are three atoms of manganese per molecule of protein, what is the molar mass of the protein
What formula is used to find the work needed to compress water from atmospheric pressure to a higher pressure (with ambient Temperature)? I know about w = integral (-PdV), but V is constant. What is this formula in terms of delta-P
the piston of an internal combustion engine compresses 434 ml of gas. the final pressure is 15 times greater than the
According to the laws of probability, the chance of two independent events occurring simultaneously is which of the following: (a) the sum of the individual probabilities, or (b) the product of the individual probabilities
What is the molarity of an unknown acid if 40.5 ml of the acid can be titrated
One series of lines called the pfund series, occurs in the infrared region, and results when an electron relaxes from higher energy levels to terminate in the level for which n=5. calculate the wavelength and frequency of the lowest energy line of..
solution x has a pH of 9.5 and solution y has a pH of 7.5. a)which solution is more acidic? b)what is the [H3O^+] in each? c)what is the [OH^-] in each
If 842 pounds of Moon samples have been collected from lunar landings, what is the mass expressed in kilograms? (Given: 1 kilogram= 2.20 pounds).
The half life for the first order decay of 99Mo is 66.02 hours. How long will it take for a sample of 99Mo to decay
When doing column chromatography using a silica as a solvent. got two bands when separating blue dextran...but unfortunately cannot remember the colors of those bands
Identify the Lewis acids in the following two equilbrium systems: System A: CO2 + H2O ? H2CO3 System B: Zn2+ + 6H2O ? Zn(H2O)62+ A. A: H2O; B: H2O B. A: CO2
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