Stearic acid formula is CH₃(CH₂)₁₆COOH The molecular mass of stearic acid is 284.48 g/mol The mass of stearic acid in 1 ml of solution is 0.1 g Therefore number of moles in 1 ml is - 0.1 g / 284.48 g/mol = 0.000352 mol Molarity is number of moles in 1 L of solution If 1 ml contains - 0.000352 mol Then 1 L solution contains - 0.000352 /1 x 1000 = 0.352 mol/L Therefore molarity is 0.352 M