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Biochemistry 4th Edition by Christopher Mathews,Kensal van Holde, Dean Appling, Spencer Anthony Cahill
Edition 4ISBN: 978-0138004644Biochemistry 4th Edition by Christopher Mathews,Kensal van Holde, Dean Appling, Spencer Anthony Cahill
Edition 4ISBN: 978-0138004644 Exercise 1
In this and following chapter's, more difficult problems are indicated by an asterisk.
A chloride ion and a sodium ion are separated by a center-center distance of 0.5 nm. Calculate the interaction energy (the energy required to pull them infinitely far apart) if the medium between them is (a) water and (b) n-pentane (see Table 2.6). Express the energy in joules per mole of ion pairs. [Note: The charge on an electron is 1.602 × 10 19 C, Avogadro's number is 6.02 × 10 23 molecules/mol.]
A chloride ion and a sodium ion are separated by a center-center distance of 0.5 nm. Calculate the interaction energy (the energy required to pull them infinitely far apart) if the medium between them is (a) water and (b) n-pentane (see Table 2.6). Express the energy in joules per mole of ion pairs. [Note: The charge on an electron is 1.602 × 10 19 C, Avogadro's number is 6.02 × 10 23 molecules/mol.]
Explanation
Verified
Verified
a). Interaction energy in water: 
E = 3536.17 Joules / mol or 3. 54 kJ /mol.
b). Interaction energy in n-pentane:
E = 150940.5 Joules / mol or 151. 00 kJ /mol.
E = 3536.17 Joules / mol or 3. 54 kJ /mol.b). Interaction energy in n-pentane:
E = 150940.5 Joules / mol or 151. 00 kJ /mol.
Biochemistry 4th Edition by Christopher Mathews,Kensal van Holde, Dean Appling, Spencer Anthony Cahill
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