What is the mass, in grams, of 28.76 mL of acetone? Express your answer using four significant figures

Answer 1

Look up the density of acetone. I find it to be 0.7910 g/ml @25ºC. Using this value, we compute the mass of 28.76 ml as follows:

28.76 ml x 0.7910 g/ml = 22.75 g

You answer may be different if you use a different value for the density.