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Problem- Which reaction will be spontaneous at 100 degrees Celcius? And please explain why the answer is correct (show math).
1) DeltaH = 25 kJ/mol, delta S= 50 J/mol K
2) DeltaH = -5 kJ/mol, delta S= 50 J/mol K
3) DeltaH = 25 kJ/mol, delta S= 25 J/mol K
4) DeltaH = -5 kJ/mol, delta S= -100 J/mol K
J. D. Dojahn et al characterized the potential energy curves of the ground and excited electronic states of homonuclear diatomic halogen anions (F2-, Cl2-, etc). These anions have a 2Sigma(u)+ ground state and 2Pi(g), 2Pi(u), and 2Sigma(g)+ excite..
Given the parent compound, draw the mass spectrum fragment that is observed at m/z 77. Include any hydrogen atoms and the charge. The compound given is a cyclohexene with double bonds at every other one.
which of the following substances will be soluble in the non-polar solvent carbon tetrachloride ccl4? select all that
Determine the empirical and molecular formula and draw the Lewis structure for a compound
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Calculate the reaction quotient Qc and find out at which temperature and
Calculate the equilibrium pressure of the H2O vapour at both 0oC and 25 oC. The value of ?H is 522.0kj/mol, why may be assumed constant over the temperature range of interest.
Problem- If I use a 5-hydroxy pental with acid to get a cyclic compound which I believe to be oxane with oh group next to it (can't think of the name of the compound off the top of my head) then where would the equilibrium lie
Consider 0.10 M solutions of the following substances. Rank the solutions in order of increasing pH where 1 is the solution with the lowest pH and 7 is the solution with the highest pH.
Explain when measuring pH during a titration. We have a buret containing NaOH (aq) of known concentration. Explain under the buret we have a beaker containing HCl (aq) of unknown concentration. Explain with a pH meter in the beaker that reads 1.30..
What do the structures of a two-carbon acid, a two-carbon alcohol, a three-carbon aldehyde, a four-carbon ketone, and a two-carbon amide look like
Write a balanced (a) molecular, (b) overall ionic, and (c) net ionic equation for the reaction between an aqueous solution of phosphoric acid, H3PO4 (aq) , and an aqueous solution of sodium hydroxide. The products are sodium phosphate and water
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