Given that the density of vinegar is 1.049 g/mL, convert the molarity of the acetic acid solution found in calculation 5 into a mass percentage of acetic acid. (calculation from 5 was molarity of acetic acid =2.251)

Are you a bit impatient? Five minutes is hardly time to read the question and certainly not time to type out the solution. Anyway, see your later post where I've done most of the work.