Answer:
Density=2.142 g/mL
Explanation:
Density is defined as the mass per unit volume of a compound, the mass of the NaCl solution is given by the subtraction of the mass of the cylinder with the solution minus the mass of the empty dry cylinder.
[tex]Density=d=\frac{m}{v} =\frac{(39.895-25.938)g}{6.515mL} = 2.142\frac{g}{mL}[/tex]
