$0.0750 \ M$
Work Step by Step
Number of moles of the sample: $25.0\ mL\times1.50\ M=37.5\ mmol$ Concentration: $37.5\ mmol/500.\ mL=0.0750\ M$
You can help us out by revising, improving and updating this answer.Update this answer
After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.