An antiseptic solution is made by 2.3% antiseptic (MW = 556.94 g/mol) in water. It has a density of 0.9873 g/mL. Calculate the molarity of the antiseptic solution.

• A. 0.041 M
• B. 13 M
• C. 1.7 M
• D. 1.2 M

Answer: (A)