Molar concentration of acetic acid = 1 M
Further explanation
Given
acetic acid in 6% solution (d=1 g/ml)
Required
molar concentration
Solution
mass of acetic acid in solution
mass = density x %mass
mass = 1 g/ml x 6%
mass = 0.06 g/ml ⇒ 60 g/L
MW acetic acid = 60 g/mol
molarity acetic acid = mass : MW
molarity = 60 g/L : 60 g/mol
molarity = 1 mol / L = 1 M