MDCAT Chemistry MCQ #127

A 15 mL sample of an aqueous solution of ethanol (C2H5OH) contains 0.7 g of ethanol. What is the molar concentration of ethanol in the solution?

MDCAT Chemistry MCQ #127

  1. Question 1

    Q1. A 15 mL sample of an aqueous solution of ethanol (C2H5OH) contains 0.7 g of ethanol. What is the molar concentration of ethanol in the solution?

    • A) 0.05 M
    • B) 0.1 M
    • C) 0.15 M
    • D) 0.3 M

    Answer: 0.1 M

    Explanation: The molar concentration of ethanol can be calculated using the formula: Molarity = moles of solute / liters of solution, which equals 0.1 M in this case.