Answer:
To show Mrs. Mallard’s loss of an independent identity in marriage.
Step-by-step explanation:
"The Story of an Hour" is a story about a woman who feels trapped in her marriage. Although she does not consider herself an unhappy person, the sense of liberation she feels at finding out she is left without a husband indicates how unbearable marriage was for her, and how she suffered from a complete lack of liberty. The fact that Mrs. Mallard is only known through this name reinforces the idea that she has no individual identity within her marriage.