I can't isolate the chapters for you but I can think of a few ideas, which you might consider. The "Red Room" foreshadows punishment and the very gothic nature of the house. Jane's eventual inheritance from her uncle (ch 33) is foreshadowed in chapter 3 with the mention of her uncle, “poor, low relations called Eyre,” In chapter 21, when visiting her aunt, Jane learns more about her uncle. This too foreshadows her inheritance in chapter 33.
The chestnut tree under which Rochester proposes to Jane is another example of foreshadowing. Before they leave, Jane mentions that it “writhed and groaned,” and that night, it splits in two, foreshadowing trouble in their relationship.