Question

A student obtains the following data: Mass of empty, dry graduated cylinder: 25.938 g Volume added of NaCl solution: 6.515 mL Mass of graduated cylinder + NaCl solution: 39.895 g What is the density of the solution? Express your answer to 3 digits after the decimal.

Answer 1

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.

$Density=d=\frac{m}{v} =\frac{(39.895-25.938)g}{6.515mL} = 2.142\frac{g}{mL}$