Answer:
B) hyperbaric oxygen chamber to increase PO2 and clear CO from the body
Explanation:
Carbon monoxide poisoning occurs from the breathing in of poisonous gas, carbon monoxide (CO) at high levels. Large exposures of the gas can result in the loss of consciousness, seizures, or even death.
<u>Hyperbaric oxygen is used in treatment of carbon monoxide poisoning, as it hasten the dissociation of CO from carboxyhemoglobin and also cytochrome oxidase to a greater extent as compared to normal oxygen. It also enhance the oxygen transport to tissues by the plasma.</u>
Answer:
b. Extraction with a solution of sodium hydrogen carbonate, separating the layers, followed by drying and evaporating the organic layer.
Step-by-step explanation:
The ether solution contains your product, benzaldehyde, and some starting material, benzoic acid, the purification steps are:
- Extract with a solution of NaHCO₃. The ether layer contains benzaldehyde, and the aqueous layer contains sodium benzoate.
- Separate the layers. Keep the ether layer.
- Dry the ether solution.
- Distill the ether (boiling point 35 °C) and purify the benzaldehyde (178 °C) by steam distillation.
a. is wrong. Extraction with HCl will not remove much of the benzoic acid.
c. is wrong. If you evaporate the organic layer, you will have a mixture of benzaldehyde and benzoic acid.
d. is wrong. If you work with the aqueous layer, you will end up with benzoic acid,
A hypothesis is an experimental question that can later be proven correct or incorrect by scientific evidence.
