density calculation

Question

Please help me solve this problem. Thank you!!! 

An empty graduated cylinder has a mass of 38.43 g. 3.4 mL of a liquid is added to the cylinder, which is then weighed. The mass of the cylinder plus liquid is 46.28 g. Calculate the density of the liquid

Answer 1

density = mass/volume

 

mass of the liquid = (mass of the cylinder + liquid) - mass of the cylinder = 46.28g - 38.43g = 7.85g

 

volume of the liquid is given as 3.4 mL

 

Therefore the density = 7.85g/3.4ml = 2.309g/mL