Books(current) Courses (current) Earn 💰 Log in(current)

Problem 91

Magnesia (MgO) is used for fire brick, crucibles,…

View
Auburn University Main Campus

This question is in the process of being solved. The video shown is an answer to a question that covers similar topics.

Problem 90

Hemoglobin carries $\mathrm{O}_{2}$ from the lungs to tissue cells, where the $\mathrm{O}_{2}$ is released. The protein is represented as $\mathrm{Hb}$ in its unoxygenated form and as $\mathrm{Hb} \cdot \mathrm{O}_{2}$ in its oxygenated form. One reason
$\mathrm{CO}$ is toxic is that it competes with $\mathrm{O}_{2}$ in binding to Hb:
$$\mathrm{Hb} \cdot \mathrm{O}_{2}(a q)+\mathrm{CO}(g) \rightleftharpoons \mathrm{Hb} \cdot \mathrm{CO}(a q)+\mathrm{O}_{2}(g)$$
(a) If $\Delta G^{\circ} \approx-14 \mathrm{kJ}$ at $37^{\circ} \mathrm{C}$ (body temperature), what is the ratio of [Hb. CO] to $\left[\mathrm{Hb} \cdot \mathrm{O}_{2}\right]$ at $37^{\circ} \mathrm{C}$ with $\left[\mathrm{O}_{2}\right]=[\mathrm{CO}] ?$ (b) How is Le Châtelier's principle used to treat CO poisoning?

Answer
Check back soon!
Chapter 20
Thermodynamics: Entropy, Free Energy, and the Direction of Chemical Reactions
CHEMISTRY: The Molecular Nature of Matter and Change 2016

Topics