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1. a)    Predict the effect of the following changes on the reaction in which SO3 decomposes...

1.

a)    Predict the effect of the following changes on the reaction in which SO3 decomposes to form SO2 and O2.

2 SO3(g) → 2 SO2 (g) + O2 (g) delta Ho = 197.78 kJ

(1) Increasing the temperature of the reaction.

(2) Increasing the pressure on the reaction.

(3) Adding more O2 when the reaction is at equilibrium.

(4) Removing O2 from the system when the reaction is at equilibrium.

b)        A person exposed to high levels of carbon monoxide is in trouble due to binding of CO molecules to hemoglobin (Hb). Oxygen doesn’t bind as strongly to hemoglobin as carbon monoxide. Please explain why hyperbaric O2 is used as the definitive treatment for CO poisoning and express this concept with a chemical equation and an equilibrium expression.

Hb (aq) + 4O2 (g) à Hb(O2)4 (aq)   Carrying oxygen

Hb (aq) + 4O2 (g) ß Hb(O2)4 (aq)    Giving oxygen to the cells

Hb (aq) + 4CO (g) ⇋ Hb(CO)4 (aq)

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