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Compare cross-sections of the direct ionization by electron impact computed using different modifications of the Thomson formula. Compute maximum values of the cross-sections as well as corresponding values of electron energy for each of the Thomson formula modifications.
Define why the major product in the experiment of synthesizing trans-p-anisalacetophenone from p-anisaldehyde and acetophenone is the crossed aldol product rather than self-condensation of acetophenone or the Cannizzaro reaction.
A gasous mixture of O2 and Kr has a density of 1.104 grams per liter at 435 torr and 300 K. What's the mole percent of O2 in the mixture?
Assuming that the gas is at standard temperature and pressure there is 1.00 mole per 22.4 L of volume how many argon atoms are there present in this sign
a 4.305-gram sample of a nonelectrolyte is dissolved in 105 grams of water. the solution freezes at -1.23degc.
An engineer is designing a chlorine contact chamber to disinfect poultry-processing wastes. (Note these wastes are often contaminated with the pathogenic bacteria Salmonella). She can design the system to use chlorine gas (equivalent to using HOCl..
the Nernst Equation to calculate the potential on the left and right. (Assume the standard potential for the left side equals 1.33 and the right side equals 0.268
how much heat is required to raise the temperature of 789 g of acetic acid from 25 degrees celsius to 82.7 degrees celsius? Specific heat = 2.05 J/gdegreeCelsius
a compound having an approximate molar mass of 120-15 g has the following percent composition bymass carbon 38.44
What might one do to verify that the global strain energy minimum has been identified for a compound. Why is the energy difference for t-butylcyclohexane significantly greater than the corresponding value calculated for methylcyclohexane
The relative average molar mass of an element is known to be 151.965 g. Determine the abundance fraction of the isotopes whose fractions are not displayed in the table.
A 4.000-g sample of the metal nitrate M(NO3)2 was dissolved in water and treated with excess aqueous sodium sulfate. The sulfate salt that formed weighed 3.318 g. Determine the identity of the metal.
A mixture intially contains A, B,C in the following concentrations: A= .700 B= .850 C=.400. the following reaction occurs and an equilibrium is established.
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