Question

If the density of a solution is 3.12g/mL ; the mass of 1.5mL solution in significant figure is ?​

Answer 1

Explanation:

The density of the solution is 3.12 g/ml (you forget mention unit)

A volume of solution is 1.5 ml

Mass of the solution = volume * density

= 1.5*3.12

4.68 g ~ 4.7 (2 significant figure).