Chapter 8: Q12P (page 183)
Find the activity coefficient of in a solution containing plus . What is the pH of the solution?
Short Answer
Thus the activity coefficient of is and pH of role="math" localid="1654858154412" is 2.07
Chapter 8: Q12P (page 183)
Find the activity coefficient of in a solution containing plus . What is the pH of the solution?
Thus the activity coefficient of is and pH of role="math" localid="1654858154412" is 2.07
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Get started for free(a) Ion Pairing . As in problem , find the concentration, ionic strength, and ion pair fraction in
(b) Two possibly important reactions that we did not consider are acid hydrolysis of and base hydrolysis of . Write these two reactions and find their equilibrium constants in Appendices I and G. With the assumed pH near and neglecting activity coefficient, show that both reactions are negligible.
Write two mass balances for a 1.0Lsolution containing 0.100molof sodium acetate.
Find the activity coefficient of each ion at the indicated ionic strength:
Assuming complete dissociation of the salts, calculate the ionic strength of
(a)
(b)
(c) plus
14.The temperature-dependent form of the extended Debye-
Hückel equation 8-6 is
where is the (dimensionless) dielectric constant* of water, T is
temperature (K), Z is the charge of the ion,is ionic strength ,andis the ion size parameter (pm). The dependence of ´
on temperature is
role="math" localid="1654916203154"
Calculate the activity coefficient ofatwhen. Compare your value with the one in Table 8-1.What do you think about this solution?
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