Please answer question #7 6. The binding of oligamers (lys)m of the amino acid l

Question

Please answer question #7

6. The binding of oligamers (lys)m of the amino acid lysine, where m indicates the number of lysines in each oligomer, to a synthetic double-stranded RNA poly (rA rU) has been studied. The experimental data are listed in the following table. How many phosphate groups does each lysine appear to neutralize? 0.25 2.39 2.79 0.39 1.60 1.88 0.10 logKobs for (lys)4 logKe for Cys)s 4.62 4.71 7. Which of the following has a higher chemical potential? If neither, answer "same" a. H20 (s) or H20 () at water normal melting point. b. H20 (s) at-5 °C and 1 bar or H20 (1) at- 5 °C and 1 bar. c. Benzene at 25 °C and 1 bar or benzene in a 0.1 M toluene solution in benzene at 25 °C and 1 bar.

Explanation / Answer

Answer:

The chemical species which will be less stable will be having higher chemical potential as compared to the other chemical species. When they are in equilibrium, they don't have same chemical potential

a)

Same

Reason: Since H2O(s) and H2O(l) will be having same chemical potential because they are in equilibrium

b)

H2O (l) at -5C and 1 bar will have higher chemical point

H2O(s) will have a temperature of 0C, hence it will be higher stable than H2O(l) at -5C

c)

Benzene at 25C and 1 bar

Since mole fraction of benzene is higher than mole fraction of toluene

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