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Choose the selection which lists the following substances in order of increasing boiling point (lowest boiling substance listed first): CS2, N2, and CBr4 a) N2 < CS2 < CBr4 b) CS2 < CBr4 < N2 c) N2 < CBr4 < CS2 d) CBr4 < CS2 < N2 e) CS2 < N2 < CBr4
What is the molar solubility of magnesium hydroxide: in water, in pH 12.00 buffer, and in 0.50M magnesium nitrate
The pentapeptide leucylglycylthreonyltyrosylalanine is first incubated with l-fluoro-2,4-dinitrobenzene (FDNB). When the resulting compound is heated to 110oC for 24 h in the presence of 6 M HCl, the solution will contain
Why do you think the enthalpy of activation, H ‡ , for a syn-periplanar elimination is higher than that for an anti-periplanar elimination
There are three resonance contributors. Draw all resonance structures for H2CNO2 and show all nonbonding electrons and formal charges
The flask was removed, was quickly cooled to condense the volatile liquid, dried and weighed. The mass of the flask and the volatile liquid is 34.743 grams
Write the mechanism for the formation of 4-chorobenzanilide from the coimbination of the following reactants Carbon tetrachloride, 4-Chlorobenzaldehyde, Benzoyl peroxide, Aniline
1.2 mol of helium is mixed with 2.3 mol of argon in a volume of 1.0L and a temperature of 25.0C. Assuming that helium and argon are perfect gases, what is the pressure of the mixture
What is the most appropriate temperature for storing your protein between purification steps? a) Room temperature b) 4° C c) -20° C d) -80° C
When hydrogen sulfide gas is bubbled into a solution of sodium hydroxide, the reaction forms sodium sulfide and water. How many grams of sodium sulfide are formed if 2.00 g of hydrogen sulfide
calculate the number of excess reagent units remaining when 100 C4H10 molecules and 611 O2 molecules react?
Write a reaction mechanism for the chlorination of 1-butene by Cl2. Use curved arrows to show electron movement. Show structures of key reaction intermediates and products and indicate the stereochemistry of the reaction.
How much heat is liberated at constant pressure if 0.834 g of calcium carbonate reacts with 48.9 mL of 0.668 M hydrochloric acid? CaCO3(s) + 2HCl(aq) > CaCl2(aq) + H2O(l) + CO2(g); DeltaH = -15.2 kJ
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