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What is the velocity of a hydrogen molecule after absorbing a photon @ 58.4 nm? What is the translational energy of the molecule in J mol-1
How many additional mL of 0.0750 M Ca(OH)2 or ).100 M HCl would be required to neutralize the solution?
During the electolysis of fused BaCl2, which reaction occurs at the cathode? (1)Chloride ions are oxidized (2) Chloride ions are reduced (3) Barium ions are oxidized (3) Barium ions are reducued
Carbon-14 has a half-life of 5730 years. A sample of carbon with a mass of 0.120 g has an activity of 40 decays/hr. The initial specific activity is assumed to have been 900 decays/hr/gram. How old is the sample
This question deals with the reaction between benzene and 1-chloro-2-methylpropane in the presence of AlCl3. Knowing that the arenium ion intermediate has positive charge on the ortho and para carbons
A solution containing 100g of unknown liquid and 900g water has a freezing point of -3.33C. Given Kf=1.86C/m for water, determine the molecular weight of the unknown liquid and express your answer in g/mol.
Calculate the amount of heat (in kj) required to heat 2.75 kg of water from 13.20 degrees celsius to 46.32 degrees celsius
For the following reaction at equilibrium at 445 celsius the partial ressures were found to be ; [H2] = 0.45 atm, [I2] =0.10 atm and [Hi]=1.53 atm. calculate Kp for this reactino H2(g)+I2(g)---->2HI(g)
Green light of a wavelength 516 nm is absorbed by an atomic gas. What is the energy difference between the two quantum states involved in the transition.
During the Purification of Lactate Dehydrogenase (LDH) experiment, you will need 50ml of buffer A150. Buffer A150 is 30mM Tris (pH 8.8) and 150mM NaCl. Given 1L of 1.5M Tris and 500ml of 5M NaCl,
the reaction between all trans lycopene and iodine. Write a feasible mechanism.
When 24 copper pennies are submerged in water, the pennies displace 8.26 cm3 of water. If the combined mass of the pennies is 73.86 g, what is the density of copper?
A procedure called coulogravimetric analysis combines a weight determination with a measurement of the quantity of electricity in a controlled-potential electrolysis to analyze bromide-chloride mixtures
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