MDCAT Chemistry MCQ #131

A 10 mL sample of an aqueous solution of ethanol (C2H5OH) contains 1.2 g of ethanol. What is the molar concentration of ethanol in the solution?

MDCAT Chemistry MCQ #131

  1. Question 1

    Q1. A 10 mL sample of an aqueous solution of ethanol (C2H5OH) contains 1.2 g of ethanol. What is the molar concentration of ethanol in the solution?

    • A) 0.1 M
    • B) 0.2 M
    • C) 0.3 M
    • D) 0.4 M

    Answer: 0.3 M

    Explanation: The molar concentration of ethanol can be calculated using the formula: Molarity = moles of solute / liters of solution, which equals 0.3 M in this case.