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An unknown gas Q effuses 1.33 times as fast under the same conditions as Xe gas. What is the molar mass (g/mol) of Q?
the standard change in Gibbs free energy is ?G° = -32.8 kJ/mol. What is ?G for this reaction at 298 K when the partial pressures are P C2H6=0.100atm, P H2=0.100atm and P CH4=.750atm
Draw structures of the following 5-carbon molecules. which are isomers of eachother and explain the type of isomerism involved?
the elemental mass percent composition of ascorbic acid (vitamin C) is 40.92% C, 4.58% H, and 54.50% O. Determine the empirical formula
A sample of argon has a volume of 205 cm3 when its temperature is -44.0 oC and its pressure is 712 mm of Hg. What would be the volume of the argon at STP?
The pressure in an engine cylinder increases from 7.6 atm to 13 atm as the gas is compressed from 0.50 L to 0.10 L. What is the expected cylinder temperature if the gas was initially 15°C?
The mass spectrum of an organic compound shows the relative abundances of M to be 36.44% and M 1 to be 8.277%. Assuming the peaks are caused by 12C and 13C isotopes
It then gives off a photon having a wavelength of 4.10 × 102 nm. What is the final state of the hydrogen atom? Values for physical constants can be found here.
A catalyst decreases the activation energy of a particular exothermic reaction by 59 kJ/mol, to 51 kJ/mol. Assuming that the mechanism has only one step, and that the products are 94 kJ lower in energy than the reactants
Give the number of d-electrons associated with the central metal ion in each of the following complexes: K3[Fe(CN)], [Mn(H2O)6](NO3)2, Na[Ag(CN)2], [Cr(NH3)4Br2]ClO4, [Sr(EDTA)]2-
A solution is made by mixing equal masses of methanol, CH4O, and ethanol, C2H6O. Determine the mole fraction of each component
A solution is made by combining 500ml of .10M HF with 300ml of .15M NaF. What is the pH of the solution? (Ka=7.2e-4 for HF)
Organic Reactions - Cyclopentadiene, Why is cyclopentadiene monomer more stable at higher temperatures although dicyclopentadiene (dimer) is more stable at lower temperatures?
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