GKFix MCQ Question

What is the correct formula for calculating the molality (m) of a solution?

• A. m = (w1 / M1) / (w2 / 1000)
• B. m = (w2 / M1) / (w1 / 1000)
• C. m = (w1 / M2) / (w2 / 1000)
• D. m = (w2 / M2) / (w1 / 1000)