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Cycloheptatrienyl cation(a) How many resonance structures are there for the cyclohepatrienyl cation? Draw them.
(b) Are carbon-carbon bonds equivalent?
(c) How many peaks would you expect to see in the 1H NMR as well as the 13C NMR spectra of this cation?
(d) Use the Frost Circle to draw the energy levels of the Pi molecular orbitals for this ion, show the electronic configuration and explain why the ion is aromatic.
(e) Does it obey the Huckel rule?
where all compounds are assumed as covalent then determine which reaction must be endothermic and also explain your answer briefly?
If the density of the solution is 1.1094 g/mL, what is the molarity of the sulfuric acid?
Calculate the hydronium ion concentration and the pH when 25.0 mL of 0.50 M NH3 is mixed with 65.0 mL of 0.19 M HCl.
The mass ratio of sodium to fluorine in sodium floride is 1.21:1. a sample of sodium fluoride produced 26.5g of sodium upon decomposition how many grams of fluorine was formed.
What is the total sample size (in grams) for a sample of disulfur octoxide which contains 3.52 g of oxygen.
Standard potentials measured against the standard hydrogen electrode, Standard potentials are measured against the standard hydrogen electrode (S.H.E.). Because it is not always convenient to use a S.H.E
A solution is prepared by adding some solid CaF2 to water and allowing the solid to come to equilibrium with the solution. The equilibrium constant for the reaction below is Kc = 3.9x10-11.
What factor determines whether a carbon atom in a compound is chiral? Draw the Lewis structure for each of the following functional groups: alcohol, ether, aldehyde, ketone, carboxylic acid, ester, amine.
A 0.894-g sample of gas occupies 125 mL at 60. cm of Hg and 25C. What is the molar mass of the gas.
Calculate the fraction of atoms in a sample of argon gas at 391 K that have an energy of 12.7 kJ
calculate the specific heat capacity of zinc given that a 65.5g sample loses 2008J of heat when cooled from 100.0 degrees celcius to 21.1 degrees celcius.
Find out the concentration of this solution 1) in m (molality), 2) XHX (mole fraction of HX), 3)% w/w (percent by mass) if solvent in this solution is H 2 O. ?
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