IBDP Chemistry Question Analyses Topic: Chemistry - Short Questions
Exam Question:
1) Give reasons for the following.
Aquatic animals are more comfortable in cold water than in warm water.
2) Write the structure of the product when chlorobenzene is treated with methyl chloride in the presence of sodium metal and dry ether.
Answer:
For IBDP Chemistry, you should know:
1) In contrast to warm water, cold water has higher concentrations of dissolved nitrogen and oxygen gases. Aquatic creatures can breathe more easily in cold water as opposed to warm water. So, for comfort, aquatic species prefer cold water to warm water.
Henry's constant (KH) for nitrogen and oxygen rises in value with increasing temperature. As a result, nitrogen and oxygen become less soluble as the temperature rises.
2) Toluene is created when chlorobenzene is reacted with methyl chloride in the presence of sodium metal and dry ether. That is an illustration of a Wurtz response.
Diagram:
Work hard for your IBDP Chemistry examination!
End of analysis. Great!
