Final answer:
The urine sample has a pH of 4.5, indicating that it is acidic.
Step-by-step explanation:
The pH of the urine sample is 4.5, which indicates that the urine is acidic.
The pH scale ranges from 0 to 14, where anything below 7 is considered acidic. Since a pH of 4.5 is below 7, it falls within the acidic range.
Some examples of substances with acidic pH include orange juice with a pH of approximately 3.5 and the environment in the stomach with a pH of 1 to 2.