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The rate constants of some reactions double with every 10 degree increase in temperature. Presume that a reaction takes place at 340 K and 350 K. Explain what must the activation energy be for the rate constant to double as described?
Calculate the gas NH3 in ppm over NH4OH solution.The density of the solution is 0.9g/ml and the Commercial concentrated aqueous ammonia is 29%.
if in a certain experiment over a specific time period 0.0027 mol ph3 is consumed in a 1.8-l container each second of
A 0.48 mg sample of sulfur-35 has an activity of 20.4 Ci. What is the decay constant of sulfur-35 (in /s)
1.would you xpect the alpha-protons of a thioester to have a lower or higher pka than an ester? why? remember the pka
10.0ml of 0.10M Pb(NO3)2 is mixed with 10.0ml NaCl. After equilibrium is attained, it is determined that the concentration of Cl- in solution is 0.0218M. Calculate the Ksp of PbCl2.
Elimination competes with substitution reactions, especially at high temperature. If that's the case, why did I not see more elimination in my 2 reactions
Which of the following elements would you expect to gain electrons in chemical changes
A liquid that has a density of 0.80 ± 0.01 g/mL is insoluble in cyclohexane. What is the liquid?
Calculate the ratios of the different kinds of protons in a compound with an integral ratio of 6 : 4 : 18.4 (going from left to right across the spectrum).
The magnetic properties of B2 are consistent with the p2p MOs being lower in energy than the O2p MO.
in the process three evaporators are used in series to reduce the water level of an incoming brine solution which
using a solution that is containing 110-2 m pb2 ions is mixednbsp to 210 -4m solution of i-ions now you just need to
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