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a) A solution of 1-iodohexane b) A solution of (S)-2-iodohexane c) A solution of 40% (S)-3-chlorohexane and 60% (R)-3-chlorohexane d) A solution of equal quantities of R and S 3-chlorohexane
A system receives 93 J of electrical work, performs 227 J of pressure-volume work and releases 155J of heat.What is the change in Internal energy of the system?
Which of the following chemicals have the highest value 1-10 for electrical conductivity when dissolved in water and why
A protein biochemist attempted to determine the amino acid sequence of a decapeptide. Use the results from the trypsin, chymotrypsin, and cyanogen bromide treatments to suggest the amino acid sequence of this decapeptide.
What is the SUM of all of the coefficients in the reaction. 2 C8H18 + 25 O2= 16 CO2 + 18 H2O
A 50.0 mL sample of 0.155 M HNO2(aq) is titrated with 0.100 M NaOH(aq). What is the pH of a solution after the addition of 25.0 mL of NaOH. (Ka of HNO2 = 4.5 ´ 10-4)
Determine Qc if the following amounts (in moles) of each component is placed in a 10.00 L container.
The molar heat capacity of a compound with the formula C2H6SO is 88.0 J/mol-K. what is the specific heat of this substance.
Methyl salicylate is an ester and can be prepared from salicylic acid and methyl alcohol by the same method
If the reaction is first order in A and second order in B, what is the rate when the initial concentration of A = 2.30 mol/L and that of B = 2.03 mol/L
Trees in cold climates may be subjected to temperatures as low as -60 C. Estimate the concentration of an aqueous solution in the body of the tree that would remain
The total pressure for a mixture of N2O4 and NO2 is 1.5 atm. If Kp=7.1 (at 25 degrees C) calculate the partial pressure of each gas in the mixture. 2NO2(g) N2O4(g)
Carbonic acid then ionizes in water (Ka1 = 4.5× 10-7). Ignoring Ka2, estimate K for the overall process by which CO2 and H2O form H and HCO3-.
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